Progress is the mother of all problems.

One must somehow find a way of loving the world without trusting it; somehow one must love the world without being worldly.

Man seems to be capable of great virtues but not of small virtues; capable of defying his torturer but not of keeping his temper.

A good joke is the closest thing we have to divine revelation.

Do not be so open-minded that your brains fall out.

Whatever else we may say of our own age, for good or evil, nobody is likely to call it an Age of Reason.

If you spell a word wrong you have some temptation to think it wrong.