When we debunk a fanatical faith or prejudice, we do not strike at the root of fanaticism. We merely prevent its leaking out at a certain point, with the likely result that it will leak out at some other point.

It is futile to judge a kind deed by its motives. Kindness can become its own motive. We are made kind by being kind.

The most troublesome problem which confronts social engineering is how to provide for the untalented and, what is equally important, how to provide against them.

Unpredictability, too, can become monotonous.

We can be absolutely certain only about things we do not understand.

To wrong those we hate is to add fuel to our hatred. Conversely, to treat an enemy with magnanimity is to blunt our hatred for him.

A man's worth is what he is divided by what he thinks he is.