Being mad is even pleasant. But only a madman understands that.

To be an artist is first to be a manual laborer.

To try to understand another human being, to grapple for his ultimate depths, that is the most dangerous of human endeavors.

I do not know a better cure for mental illness than a book.

Listen, my friend, all forms that exist in God's universe can be found in the human figure. A man's body and face can tell everything he represents. So how could I ever exhaust my interest in it?

The most perfect guide is nature. Continue without fail to draw something every day.

You cannot be firmly certain about anything. You can only have enough courage and strength to do what you consider to be right. Maybe it turns out that was wrong, but still you would have done his, and it is most important.