“To invent out of knowledge means to produce inventions that are true. Every man should have a built-in automatic crap detector operating inside him. It also should have a manual drill and a crank handle in case the machine breaks down. If you're going to write, you have to find out what's bad for you. Part of that you learn fast, and then you learn what's good for you.”

“No weapon has ever settled a moral problem. It can impose a solution but it cannot guarantee it to be a just one.”

“I can't stand it to think my life is going so fast and I'm not really living it.”

“The house was built on the highest part of the narrow tongue of land between the harbor and the open sea. It had lasted through three hurricanes and it was built solid as a ship.”

“[Robert] Capa: He was a good friend and a great and very brave photographer. It is bad luck for everybody that the percentages caught up with him. It is especially bad for Capa. (On Capa's death in Vietnam, May, 27, 1954)”

“Ignorance and bigotry, like other insanities, are incapable of self-government.”

“Bigotry is the disease of ignorance.”

“The Gothic idea that we were to look backwards instead of forwards for the improvement of the human mind, and to recur to the annals of our ancestors for what is most perfect in government, in religion and in learning, is worthy of those bigots in religion and government by whom it has been recommended, and whose purposes it would answer. But it is not an idea which this country will endure.”