Unity of the human species
Multiple authors across the 19th century affirm that all human populations belong to a single, unified biological species despite their physical variations.
Historical conceptions of humanity as a species when the passage does not warrant direct assignment to the modern taxon.
Candidate findings
Patterns synthesized only from the linked claims below. Each remains a research lead, not a substitute for reading the passages.
Multiple authors across the 19th century affirm that all human populations belong to a single, unified biological species despite their physical variations.
The basis for classifying human groups shifts from observable physical traits and environmental adaptation to a focus on genealogical descent.
Tacitus, in his speculations on the inhabitants of Britain ('Agricola', cap. ii.), distinguishes with much judgment between that which may be owing to the local climatic relations, and that which, in the immigrating races, may be owing to the unchangeable influence of a hereditary and transmitted type.Cosmos →
If it could be proved that the Hottentot had descended from the Negro, I think he would be classed under the Negro group, however much he might differ in colour and other important characters from negroes.On the Origin of Species →
While human populations are often categorized into varieties or races, these systems are qualified by the lack of objective definitions and the rejection of inherent hierarchies.
The distribution of mankind is therefore only a distribution into 'varieties', which are commonly designated by the somewhat indefinite term 'races'. As in the vegetable kingdom, and in the natural history of birds and fishes, a classification into many small families is based on a surer foundationCosmos →
we at the same time repel the depressing assumption of superior and inferior races of men.Cosmos →
we fail to recognize any typical sharpness of definition, or any general or well-established principle in the division of these groups.Cosmos →
The definition of the human species shifts from a focus on anatomical and moral characteristics in the 18th century to a focus on prehistoric development and instinctual behavior by the late 19th century.
effe animal flens, ridens, melodum, loquens, docile , judicans , admirans , fapientiffimumSystema Naturae →
These are the most prominent of the tendencies which are worthy of being called instinctive in the human species. 35 It will be observed that no other mammal, not even the monkey, shows so large an array .The Principles of Psychology →
an audience of some five or six score people, if each person in it could speak for his own generation, would carry us away to the black unknown of the human species, to days without a document or monument to tell their tale.The Will to Believe and Other Essays →
There is a tension between the assertion of a unified species and the acknowledgment that the question of whether humanity descended from one or multiple primitive races remains empirically unresolvable.
But whether the human races have descended from several primitive races of men, or from one alone, is a question that can not be determined from experience.Cosmos →
While we maintain the unity of the human speciesCosmos →
Names and forms
Meanings in context
The human species defined by physical, anatomical, or morphological traits that distinguish it from other animals or non-human entities.
5 passagesThe human species characterized by unique cognitive, linguistic, social, or moral capacities that transcend mere physical form.
5 passagesThe human species viewed through the lens of ethnic, geographic, or genealogical diversity and the classification of human groups.
7 passagesThe human species considered in the context of its deep temporal origins and the evolution of its historical record.
1 passageAnalyzed source evidence
Distinct local senses and assertions recovered from the corpus. Quotations retain the source OCR and link to the full passage and scan.
Thus is _Albertus_ to be received when he affirmeth, that _Mandrakes_ represent man-kind with the distinction of either Sex
Mandrakes are claimed to represent the human species with sexual distinction.
reports · authority citation · classificationDenique ob mifturam variarum natioilum , aliae quinque diftinctx hominum fpecies hie rcperiuntur
The author identifies five distinct types of humans in Brazil resulting from the mixing of different ethnic groups.
asserts · observation · classificationThe author defines specific categories of people based on the ethnic origin of their parents.
asserts · observation · classificationI i. HOMO nofce Te ipfum. (*) Sapiens. i. H. diurnus; varians cultura, loco
Linnaeus classifies humans as the genus Homo within the order Primates.
asserts · observation · classificationLinnaeus characterizes the human species as diurnal and varying by culture and location.
asserts · observation · propertyNaturalitcr: Te audacis naturce miraculum, Animalium Principem, cujus cauffa cuncta genuit natura, effe animal flens, ridens, melodum, loquens, docile , judicans , admirans , fapientiffimum
Linnaeus classifies humans as the prince of all animals.
asserts · observation · classificationHumans are defined by unique traits such as laughter, speech, and reason.
asserts · observation · propertyat in agone oculos aperiens (av&QWTTOg) fomnium primo obfervas
Humans live according to social custom rather than reason.
asserts · reasoning · propertye. CORPUS ere£tum, nudum, Pilis raris remotiffimis ad- fperfum, fubfexpedale
Linnaeus classifies the human body as having an upright, naked, and sparsely haired form.
asserts · observation · classificationThe human head is described as obovate with specific features including a blunt forehead and vertex.
asserts · observation · propertyDiffert itaque a reliquis Corpore erecto nudo, at pilofo Capite, Superciliis, Ciliisque, tandem Pube, Axillis, Maribusque Mento.
Humans are distinguished from other beings by their upright, naked body and specific hair distribution.
asserts · observation · propertyThe human head contains the largest brain of all animals.
asserts · observation · propertySpcciem Troglodytse ab Homine fapiente diftinctiffimam, nec noftri generis il- lam nec fangvinis effe
Linnaeus asserts that the Troglodytes are a species distinct from the human species.
asserts · reasoning · classificationThe presence of a nictitating membrane in the Troglodytes is evidence that they are not a human variety.
asserts · observation · propertyPour avancer dans ce genre de recherches, si importantes pour l'his- toire de l'espèce humaine
Osteological comparison of skulls is the essential method for studying the history of the human species.
asserts · reasoning · methodThe human species is composed of distinct varieties, including Malay, Mongol, and Caucasian types.
asserts · observation · classificationRegarding the persistency of types of conformation in the hot and cold regions of the earth, and in the mountainous districts of the New Continent
Human physical types exhibit persistence across different climatic and geographical regions.
asserts · observation · propertyPhysical characteristics in human populations may be attributed to either hereditary influence or environmental factors.
reports · authority citation · mechanismThe different races of mankind are forms of one sole species, by the union of two of whose members descendants are propagated.
All human races belong to a single biological species.
asserts · observation · classificationThe question of whether humanity originated from one or multiple primitive races cannot be resolved through empirical experience.
asserts · reasoning · identityThe distribution of mankind is therefore only a distribution into 'varieties', which are commonly designated by the somewhat indefinite term 'races'.
The classification of mankind into races is analogous to the classification of plants and animals into small families.
asserts · reasoning · classificationExisting racial classification systems lack clear, objective definitions or principles.
denies · observation · evaluationWhile we maintain the unity of the human species, we at the same time repel the depressing assumption of superior and inferior races of men.
The author asserts that all human beings belong to a single, unified species.
asserts · reasoning · identityThe author rejects the idea that some human races are inherently superior or inferior to others.
denies · reasoning · evaluationother laws of a more mysterious nature rule the higher spheres of the organic world, in which is comprised the human species in all its varied conformation, its creative intellectual power, and the languages to which it has given existence.
The human species is categorized as part of the organic world, yet governed by distinct, mysterious laws.
asserts · observation · classificationThe human species is defined by its varied physical conformation, intellectual creativity, and language.
asserts · observation · propertyIf it could be proved that the Hottentot had descended from the Negro, I think he would be classed under the Negro group, however much he might differ in colour and other important characters from negroes.
Classification of human groups should be based on genealogical descent rather than physical traits.
asserts · reasoning · methodThese are the most prominent of the tendencies which are worthy of being called instinctive in the human species.
The human species possesses a distinct and large array of instincts.
asserts · observation · propertyan audience of some five or six score people, if each person in it could speak for his own generation, would carry us away to the black unknown of the human species, to days without a document or monument to tell their tale.
The human species existed in an undocumented, prehistoric state long before the emergence of science.
asserts · reasoning · origin distributionto promote the survival of the human species on this planet, — are so many tests, each of which has been maintained by somebody to constitute the essence of all good things or actions so far as they are good.
The survival of the human species is proposed as a test for determining the essence of moral goodness.
reports · reasoning · function usePrimary-source evidence
The different races of mankind are forms of one sole species, by the union of two of whose members descendants are propagated. They are not different species of a genus, since in that case their hybrid descendants would remain unfruitful. But whether the human races have descended from several primitive races of men, or from one alone, is a question that can not be determined from experience."* [footnote] *Joh. Muller, 'Physiologie des Menschen', bd. ii., s. 768. Geographical investigations regarding the ancient 'seat', the so-called 'cradle of the human race', are not devoid of a mythical p 355 character. "We do not know," says Wilhelm von Humboldt, in an unpublished work 'On the Varieties of Languages and Nations', "either from history or from authentic tradition, any period of time in which the human race has not been divided into social groups. Whether the gregarious condition was original, or of subsequent occurrence, we have no historic evidence to show. The separate mythical relations found to exist independently of one another in different parts of the earth, appear to refute the first hypothesis, and concur in ascribing the generation of the whole human race to the union of one pair. The general prevalence of this myth has cause it to be regarded as a traditionary record transmitted from the primitive man to his descendants. But this very circumstance seems rather to prove that it has no historical foundation, but has simply arisen from an identity in the mode of intellectual conception, which has every where led man to adopt the same conclusion regarding identical phenomena; in the same manner as many myths have doubtlessly arisen, not from any historical connection existing between them, but rather from an identity in human thought and imagination.
The distribution of mankind is therefore only a distribution into 'varieties', which are commonly designated by the somewhat indefinite term 'races'. As in the vegetable kingdom, and in the natural history of birds and fishes, a classification into many small families is based on a surer foundation than p 356 where large sections are separated into a few but large divisions; so it also appears to me, that in the determination of races a preference should be given to the establishment of small families of nations. Whether we adopt the old classification of my master, Blumenbach, and admit 'five' races (the Caucasian, Mongolian, American, Ethiopian, and Malayan), or that of Prichard, into 'seven races'* (the Iranian, Turanian, American, Hottentots and Bushmen, Negroes, Papuas, and Alfourons), we fail to recognize any typical sharpness of definition, or any general or well-established principle in the division of these groups. [footnote] *Prichard, op. cit., vol. i., p. 247.
But language is a part and parcel of the history of the development of mind; and however happily the human intellect, under the most dissimilar physical conditions, may unfettered pursue a self-chosen track, and strive to free itself from the dominion of terrestrial influences, this emancipation is never perfect. There ever remains, in the natural capacities of the mind, a trace of something that has been derived from the influences of race or of climate, whether they be associated with a land gladdened by cloudless azure skies, or with the vapory atmosphere of an insular region. As, therefore, richness and grace of language are unfolded from the most luxuriant p 358 depths of thought, we have been unwilling wholly to disregard the bond which so closely links together the physical world with the sphere of intellect and of the feelings by depriving this general picture of nature of those brighter lights and tints which may be borrowed from considerations, however slightly indicated, of the relations existing between races and languages. While we maintain the unity of the human species, we at the same time repel the depressing assumption of superior and inferior races of men.*
With these words, which draw their charm from the depths of feeling, let a brother be permitted to close this general description of the natural phenomena of the universe. From the remotest nebulae and from the revolving double stars, we have descended to the minutest organisms of animal creation, whether manifested in the depths of ocean or on the surface of our globe, and to the delicate vegetable germs which clothe the naked declivity of the ice-crowned mountain summit; and here we have been able to arrange these phenomena according to partially known laws; but other laws of a more mysterious nature rule the higher spheres of the organic world, in which is comprised the human species in all its varied conformation, its creative intellectual power, and the languages to which it has given existence. A physical delineation of nature terminates at the point where the sphere of intellect begins, and a new world of mind is opened to our view. It marks the limit, but does not pass it. p 360 is blank p 361 ADDITIONAL NOTES TO THE PRESENT EDITION. MARCH, 1849. __________
In classing varieties, I apprehend if we had a real pedigree, a genealogical classification would be universally preferred; and it has been attempted by some authors. For we might feel sure, whether there had been more or less modification, the principle of inheritance would keep the forms together which were allied in the greatest number of points. In tumbler pigeons, though some sub-varieties differ from the others in the important character of having a longer beak, yet all are kept together from having the common habit of tumbling; but the short-faced breed has nearly or quite lost this habit; nevertheless, without any reasoning or thinking on the subject, these tumblers are kept in the same group, because allied in blood and alike in some other respects. If it could be proved that the Hottentot had descended from the Negro, I think he would be classed under the Negro group, however much he might differ in colour and other important characters from negroes.
that it is an everlasting delight to hold the being which she has brought forth protectingly in her arms, to dress it, to wash it, to rock it to sleep, or to still its hunger.” So far the worthy Schneider, to whose words may be added this remark, that the passionate devotion of a mother — in herself, perhaps — to a sick or dying child is perhaps the most simply beautiful moral spectacle that human life affords. Contemning every danger, triumphing over every difficulty, outlasting all fatigue, woman’s love is here invincibly superior to anything that man can show. These are the most prominent of the tendencies which are worthy of being called instinctive in the human species. 35 It will be observed that no other mammal, not even the monkey, shows so large an array . In a perfectly-rounded development, every one of these instincts would start a habit toward certain objects and inhibit a habit toward certain others.
They show such a lack of scientific imagination, that it is hard to see how one who is actively advancing any part of science can make a mistake so crude. Think how many absolutely new scientific conceptions have arisen in our own generation, how many new problems have been formulated that were never thought of before, and then cast an eye upon the brevity of science’s career. It began with Galileo, not three hundred years ago. Four thinkers since Galileo, each informing his successor of what discoveries his own lifetime had seen achieved, might have passed the torch of science into our hands as we sit here in this room. Indeed, for the matter of that, an audience much smaller than the present one, an audience of some five or six score people, if each person in it could speak for his own generation, would carry us away to the black unknown of the human species, to days without a document or monument to tell their tale.
Thus, to be a mean between two extremes; to be recognized by a special intuitive faculty; to make the agent happy for the moment; to make others as well as him happy in the long run; to add to his perfection or dignity; to harm no one; to follow from reason or flow from universal law; to be in accordance with the will of God; to promote the survival of the human species on this planet, — are so many tests, each of which has been maintained by somebody to constitute the essence of all good things or actions so far as they are good. No one of the measures that have been actually proposed has, however, given general satisfaction. Some are obviously not universally present in all cases, — e. g., the character of harming no one, or that of following a universal law; for the best course is often cruel; and many acts are reckoned good on the sole condition that they be exceptions, and serve not as examples of a universal law.