"I am a mathematician and a logician, and I do not find it easy to be human."

"The deeply irrational attitude of each sex toward women may be seen in novels, particularly in bad novels. In bad novels by men, there is the woman with whom the author is in love, who usually possess…"

"It is not uncommon for doctors to be asked by married couples of some years' standing for advice as to how to get children, and to find on examination that the couples have not known how to perform in…"

"I would rather be a man of paradoxes than a man of prejudices."

"I have found that the greatest joy in life is to be able to do what you want to do."