Spoken language is merely a series of squeaks.

Speech is human nature itself, with none of the artificiality of written language

Human life is driven forward by its dim apprehension of notions too general for its existing language.

In formal logic, a contradiction is the signal of defeat, but in the evolution of real knowledge it marks the first step in progress toward a victory

Civilizations can only be understood by those who are civilized.

If a dog jumps into your lap, it is because he is fond of you; but if a cat does the same thing, it is because your lap is warmer.