“Since Auschwitz we know what man is capable of. And since Hiroshima we know what is at stake.”

“So, let us be alert--alert in a twofold sense.Since Auschwitz we know what man is capable of. And since Hiroshima we know what is at stake.”

“As Socrates so philosophically put it, since we don't know what death is, it is illogical to fear it.”

“I do not like money, either for itself or for what it can buy, since I want nothing we know about.”

“I don't know if any of us really know what we are capable of until it comes to it.”

“Knowing yourself means knowing, first, what it is to be a person; secondly, knowing what it is to be the kind of person you are; and thirdly, knowing what it is to be the person you are and nobody else is. Knowing yourself means knowing what you can do; and since nobody knows what they can do until they try, The only clue to what man can do is what man has done. The value of history, then, is that it teaches us what man has done and thus what man is.”