Health is the soul that animates all the enjoyments of life, which fade and are tasteless without it.

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.

It is a mania shared by philosophers of all ages to deny what exists and to explain what does not exist.

Man is the only creature that refuses to be what he is.

Let us permit nature to have her way. She understands her business better than we do.