He who joyfully marches to music in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would suffice.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

I don't have any romanticism about any part of my past. I think of it only since it gave me pleasure or helped me grow psychologically. That is the only thing that interests me about yesterday. I don't believe in yesterday, by the way. You know I don't believe in yesterday. I am only interested in what I am doing now.

Think before you speak, your words could hurt someone's feeling more than you intended it to.

I'm just a little bit sicker than the average individual I think.

Men who think deeply say little in ordinary conversations.