All these primary impulses, not easily described in words, are the springs of man's actions.

The essentials of being a person of my type lies precisely in what they think and how they think, not in what they do. Your thoughts shape you.

Striving for peace and preparing for war are incompatible with each other, and in our time more so than ever.

The greatest activity of which man is capable: Opening up yet another fragment of the frontier of beauty.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

It is difficult to say what truth is, but sometimes it is so easy to recognize a falsehood.

The point is to develop the childlike inclination for play and the childlike desire for recognition and to guide the child over to important fields for society. Such a school demands from the teacher that he be a kind of artist in his province.