Science is what you know, philosophy is what you don't know.

These illustrations suggest four general maxims[...]. The first is: remember that your motives are not always as altruistic as they seem to yourself. The second is: don't over-estimate your own merits. The third is: don't expect others to take as much interest in you as you do yourself. And the fourth is: don't imagine that most people give enough thought to you to have any special desire to persecute you.

My sad conviction is that people can only agree about what they're not really interested in.

It is because modern education is so seldom inspired by a great hope that it so seldom achieves great results.

The qualities most needed are charity and tolerance, not some form of fanatical faith such as is offered to us by the various rampant isms

I hate the world and almost all the people in it. I hate the Labour Congress and the journalists who send men to be slaughtered, and the fathers who feel a smug pride when their sons are killed, and even the pacifists who keep saying human nature is essentially good, in spite of all the daily proofs to the contrary. I hate the planet and the human race—I am ashamed to belong to such a species.

We know too much and feel too little.