To know your Enemy, you must become your Enemy.

Wars would be a lot better, I think, if guys would say to themselves sometimes 'Jesus - I'm not going to do that to the enemy. That's too much.'

Forgive your enemies, but never forget their names.

The great enemy of the truth is very often not the lie — deliberate, contrived and dishonest — but the myth — persistent, persuasive, and unrealistic. Commencement address, Yale University, New Haven, Connecticut (11 June 1962)

Conformity is the jailer of freedom and the enemy of growth. Address to the UN General Assembly (25 September 1961)

Billy was having an adventure very common among people without power in time of war: He was trying to prove to a wilfully deaf and blind enemy that he was interesting to hear and see. He kept silent until the lights went out at night, and then, when there had been a long silence containing nothing to echo, he said to Rumfoord, "I was in Dresden when it was bombed. I was a prisoner of war."