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.

A happy life must be to a great extent a quiet life, for it is only in an atmosphere of quiet that true joy dare live.

Find more pleasure in intelligent dissent than in passive agreement, for, if you value intelligence as you should, the former implies a deeper agreement than the latter.

Morality in sexual relations, when it is free from superstition, consists essentially in respect for the other person, and unwillingness to use that person solely as a means of personal gratification, without regard to his or her desires.

A man without a bias cannot write interesting history - if indeed such a man exists.

Our instinctive emotions are those that we have inherited from a much more dangerous world, and contain, therefore, a larger portion of fear than they should.

The essence of life is doing things for their own sakes.