"There are three ways of securing a society that shall be stable as regards population. The first is that of birth control, the second that of infanticide or really destructive wars, and the third that…"

"I have lived in the world for an abominably long time."

"There is no logical impossibility in the hypothesis that the world was created five minutes ago, complete with all our memories and records."

"Patriotism is the willingness to kill and be killed for trivial reasons."

"Free thought has always been a perquisite of aristocracy."