The good life is one inspired by love and guided by knowledge.

Most of the greatest evils that man has inflicted upon man have come through people feeling quite certain about something which, in fact, was false.

I mean by intellectual integrity the habit of deciding vexed questions in accordance with the evidence, or of leaving them undecided where the evidence is inconclusive. This virtue, though it is underestimated by almost all adherents of any system of dogma, is to my mind of the very greatest social importance and far more likely to benefit the world than Christianity or any other system of organized beliefs.

Love as a relation between men and women was ruined by the desire to make sure of the legitimacy of children.

Organic life, we are told, has developed gradually from the protozoon to the philosopher, and this development, we are assured, is indubitably an advance. Unfortunately it is the philosopher, not the protozoon, who gives us this assurance.

In the ordinary business of life punctuality is . . . necessary.

Patriots always talk of dying for their country and never of killing for their country.