The search for moral guidance which shall not depend upon external authority has invariably ended in the acknowledgment of some new authority.

We must protect the right of our opponents to speak because we must hear what they have to say.

The tendency of the casual mind is to pick out or stumble upon a sample which supports or defies its prejudices, and then to make it the representative of a whole class.

It is often very illuminating...to ask yourself how you got at the facts on which you base your opinion. Who actually saw, heard, felt, counted, named the thing, about which you have an opinion?

The smashing of idols is in itself such a preoccupation that it is almost impossible for the iconoclast to look clearly into a future when there will not be many idols left to smash.

Certainly he is not of the generation that regards honesty as the best policy. However, he does regard it as a policy.

Here lay the political genius of Franklin Roosevelt: that in his own time he knew what were the questions that had to be answered, even though he himself did not always find the full answer.