No important national language, at least in the Occidental world, has complete regularity of grammatical structure, nor is there a single logical category which is adequately and consistently handled in terms of linguistic symbolism.
Edward SapirOne of the glories of English simplicity is the possibility of using the same word as noun and verb.
Edward SapirThe psychology of a language which, in one way or another, is imposed upon one because of factors beyond one's control, is very different from the psychology of a language which one accepts of one's free will.
Edward SapirImpatience translates itself into a desire to have something immediate done about it all, and, as is generally the case with impatience, resolves itself in the easiest way that lies ready to hand.
Edward Sapir