Animal rights, taken to their logical conclusion, mean votes for oysters.

This illustrates an important truth, namely, that the worse your logic, the more interesting the consequences to which it gives rise.

You must believe that you can help bring about a better world.

Physics is mathematical not because we know so much about the physical world, but because we know so little; it is only its mathematical properties that we can discover.

Every sane and sensible and quiet thing we do is absolutely ignored by the press.

If I were granted omnipotence, and millions of years to experiment in, I should not think Man much to boast of as the final result of all my efforts.

The man who is unhappy will, as a rule, adopt an unhappy creed, while the man who is happy will adopt a happy creed; each may attribute his happiness or unhappiness to his beliefs, while the real causation is the other way round.