„I have hardly ever known a mathematician who was able to reason.“

— Stephen Hawking
„For a long time — always, in fact — I have known that life here on earth is not what I needed and that I wasn't able to deal with it; for this reason and for this reason alone, I have acquired a touch of spiritual pride, so that my existence seems to me the degradation and the erosion of a psalm.“
— Emil M. Cioran
„I am one of the few honest people that I have ever known.“
— F. Scott Fitzgerald
„The only monsters I have ever known were men.“
— Jodi Picoult
„The physicists say that I am a mathematician, and the mathematicians say that I am a physicist. I am a completely isolated man and though everybody knows me, there are very few people who really know me.“
— Albert Einstein