It is ignorance that causes most mistakes.

A President needs political understanding to run the government, but he may be elected without it.

I have had enough experience in all my years, and have read enough of the past, to know that advice to grandchildren is usually wasted.

Study men, not historians.

Such an atmosphere is un-American, the most un-American thing we have to contend with today. It is the climate of a totalitarian country in which scientists are expected to change their theories to match changes in the police state's propaganda line.

(The AMA is) "just another mean trust."

An honest public servant can't become rich in politics. He can only attain greatness and satisfaction by service.