The most immoral and disgraceful and dangerous thing that anybody can do in the arts is knowingly to feed back to the public its own ignorance and cheap tastes.

Real genius of moral insight is a motor which will start any engine.

The product of the scientific imagination is a new vision of relations - like that of artistic imagination.

There is nothing more demoralizing than a small but adequate income.

The cruelest thing that has happened to Lincoln since he was shot by Booth was to fall into the hands of Carl Sandburg.

I have learned to read the papers calmly and not to hate the fools I read about.

In a sense, one can never read the book that the author originally wrote, and one can never read the same book twice.