“What is your idea of earthly happiness? To be vindicated in my own lifetime.”

“Scientists have an expression for hypotheses that are utterly useless even for learning from mistakes. They refer to them as being "not even wrong." Most so-called spiritual discourse is of this type.”

“What do you most value in your friends?Their continued existence.”

“About once or twice every month I engage in public debates with those whose pressing need it is to woo and to win the approval of supernatural beings. Very often, when I give my view that there is ...”

“It is exactly the fear of revenge that motivates the deepest crimes, from the killing of the enemy's children lest they grow up to play their own part, to the erasure of the enemy's graveyards and ...”

“It's probably a merciful thing that pain is impossible to describe from memory”

“It is not a lack of love, but a lack of friendship that makes unhappy marriages.”

“There is nothing I would not do for those who are really my friends. I have no notion of loving people by halves, it is not my nature.”

“If I had a flower for every time I thought of you...I could walk through my garden forever.”