The only use of a knowledge of the past is to equip us for the present. The present contains all that there is. It is holy ground; for it is the past, and it is the future.

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

A man of science doesn't discover in order to know, he wants to know in order to discover.

Algebra is the intellectual instrument which has been created for rendering clear the quantitative aspects of the world.

The mentality of mankind and the language of mankind created each other. If we like to assume the rise of language as a given fact, then it is not going too far to say that the souls of men are the gift from language to mankind. The account of the sixth day should be written: He gave them speech, and they became souls.

Education which is not modern share the fate of all organic things which are kept too long.

The only use of a knowledge of the past is to equip us for the present. The present contains all that there is. It is holy ground; for it is the past, and it is the future.