The whiter my hair becomes, the more ready people are to believe what I say.

Man is the product of causes which had no prevision of the end they were achieving; his origin, his growth, his hopes and fears, his loves and beliefs, are but the outcome of accidental collocations of atoms; no fire, no heroism, no intensity of though and feeling, can preserve an individual life beyond the grave.

Fervent religious believers sacrifice pleasures of the body, but instead enjoy pleasures of the mind, including the joy of knowing that those men who didn't follow their religion would be tortured for eternity.

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

Who ever heard a theologian preface his creed, or a politician conclude his speech with an estimate of the probable error of his opinion?

The first essential character [of civilization], I should say, is forethought. This, indeed, is what mainly distinguishes men from brutes and adults from children.

Why repeat the old errors, if there are so many new errors to commit?