Philosophy seems to me on the whole a rather hopeless business.

All exact science is dominated by the idea of approximation.

Many a man will have the courage to die gallantly, but will not have the courage to say, or even to think, that the cause for which he is asked to die is an unworthy one.

I think the subject which will be of most importance politically is Mass Psychology... Its importance has been enormously increased by the growth of modern methods of propaganda. Although this science will be diligently studied, it will be rigidly confined to the governing class. The populace will not be allowed to know how its convictions are generated.

I am sometimes shocked by the blasphemies of those who think themselves pious.

To acquire immunity to eloquence is of the utmost importance to the citizens of a democracy.

The megalomaniac differs from the narcissist by the fact that he wishes to be powerful rather than charming, and seeks to be feared rather than loved. To this type belong many lunatics and most of the great men of history.