"Never let yourself be diverted, either by what you wish to believe, or what you think could have beneficent social effects if it were believed; but look only and solely at what are the facts."
"Science is what you know, philosophy is what you don't know"
"There are two motives for reading a book; one, that you enjoy it; the other, that you can boast about it."
"What is wanted is not the will to believe, but the will to find out, which is the exact opposite."
"Anything you're good at contributes to happiness."
"It is essential to happiness that our way of living should spring from our own deep impulses and not from the accidental tastes and desires of those who happen to be our neighbors, or even our relations."