“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)”

“Men cease to interest us when we find their limitations”

“The secret of ugliness consists not in irregularity, but in being uninteresting.”

“I would have the studies elective. Scholarship is to be created not by compulsion, but by awakening a pure interest in knowledge. The wise instructor accomplishes this by opening to his pupils precisely the attractions the study has for himself. The marking is a system for schools, not for the college; for boys, not for men; and it is an ungracious work to put on a professor.”