I know that I am intelligent, because I know that I know nothing.

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.

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.

We shall see but a little way if we require to understand what we see.