It yet remains to point out how this belief may be established rationally, as well as empirically. Not only is it that, as in the earlier thinkers above named, a vague perception of the inscrutableness of things in themselves results from discovering the illusiveness of sense-impressions; and not only is it that, as shown in the foregoing chapters, definite experiments evolve alternative impossibilities of thought out of every ultimate conception we can frame; but it is that the relativity of our knowledge is demonstrable analytically. The induction drawn from general and special experiences, may be confirmed by a deduction from the nature of our intelligence. Two ways of reaching such a deduction exist. Proof that our cognitions are not, and never can be, absolute, is obtainable by analyzing either the _product_ of thought, or the _process_ of thought. Let us analyze each.
Citable passage
First Principles
Herbert Spencer. First Principles. 1862.
Citation
Herbert Spencer. First Principles. 1862. Page 69. Premodern Concordance passage passage-6ed0fadd46d6bc3f3a2f.