If you can't say it simply and clearly, keep quiet, and keep working on it till you can.

It is impossible to speak in such a way that you cannot be misunderstood.

Science must begin with myths, and with the criticism of myths.

We have become makers of our fate when we have ceased to pose as its prophets.

Philosophers should consider the fact that the greatest happiness principle can easily be made an excuse for a benevolent dictatorship. We should replace it by a more modest and more realistic principle -- the principle that the fight against avoidable misery should be a recognized aim of public policy, while the increase of happiness should be left, in the main, to private initiative.

No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.