Genius is not inspired. Inspiration is perspiration.

I do not need drugs to be a genius, do not take a genius to be human, but I need your smile to be happy.

Anyone can make them cry, but it takes a genius to make them laugh.

There is no genius where there is not simplicity.

A genius is a person who is seeing further and probing deeper than other people has a different set of ethical valuations from their and has energy enough to give effect to this extra vision and its valuations in whatever manner best suits his or her.

I used to think I must be a genius, but nobody's noticed. I used to wonder whether I'm a genius or I'm not, which is it? I used to think, well, I can't be mad, because nobody's put me away, therefore, I'm a genius. A genius is a form of madness, and we're all that way, you know, and I used to be a bit coy about it, like my guitar playing.