"God...created a number of possibilities in case some of his prototypes failed — that is the meaning of evolution."

“However great a man’s fear of life, suicide remains the courageous act, the clear-headed act of a mathematician. The suicide has judged by the laws of chance—so many odds against one that to live will be more miserable than to die. His sense of mathematics is greater than his sense of survival. But think how a sense of survival must clamour to be heard at the last moment, what excuses it must present of a totally unscientific nature.”

“It is impossible to go through life without trust: that is to be imprisoned in the worst cell of all, oneself.”

“...he knew there wasn't a soul in the mob he could trust – except perhaps Dallow. That didn't matter. You couldn't make mistakes when you trusted nobody.”

“At the end of what is called the "sexual life" the only love which has lasted is the love which has everything, every disappointment, every failure and every betrayal, which has accepted even the sad fact that in the end there is no desire so deep as the simple desire for companionship.”

“As long as one suffers one lives.”

“Death will come in any case, and there is a long afterwards if the priests are right and nothing to fear if they are wrong.”