With the fearful strain that is on me night and day, if I did not laugh I should die.

I decided to sell my drawings. However, I didn't want people to buy my drawings because the professor of physics isn't supposed to be able to draw - isn't that wonderful - so I made up a false name.

I knew I belonged to the public and to the world, not because I was talented or even beautiful, but because I had never belonged to anything or anyone else.

I am fond of pigs. Dogs look up to us. Cats look down on us. Pigs treat us as equals.

The truths of religion are never so well understood as by those who have lost the power of reason.