Excellence is the eternal quest. We achieve it by living up to our highest intellectual standards and our finest moral intuitions. In seeking excellence, take life seriously-but never yourself!

Clarity in language depends on clarity in thought.

History is full of surprises.

Economists are about as useful as astrologers in predicting the future (and, like astrologers, they never let failure on one occasion diminish certitude on the next).

I don't think I have made as much of my life as I should have. I should have written more books.

The genius of impeachment lay in the fact that it could punish the man without punishing the office.

For history is to the nation as memory is to the individual.