It is always one's virtues and not one's vices that precipitate one into disaster.

Unhappy people are dangerous.

His smile bore the same relation to a real smile as false teeth do to real teeth.

There was too much hatred in the world; it was manifestly as dangerous as gunpowder, yet people let it lie about, in the way of ignition.

The case against religion is the responsibility of God for the sufferings of mankind, which makes it impossible to believe the good things said about Him in the Bible, and consequently to believe anything it says about Him.

History sometimes acts as madly as heredity, and her most unpredictable performances are often her most glorious.

My memory is certainly in my hands. I can remember things only if I have a pencil and I can write with it and I can play with it. ... I think your hand concentrates for you. I don't know why it should be so.