The happy people are those who are producing something; the bored people are those who are consuming much and producing nothing.

For better or worse, man is the tool-using animal, and as such he has become the lord of creation. When he is lord also of himself, he will deserve his self-chosen title homo sapiens.

The Devil deserves zero tolerance.

No Christian can be a pessimist, for Christianity is a system of radical optimism.

The proper time to influence the character of a child is about a hundred years before he is born.

We have enslaved the rest of the animal creation, and have treated our distant cousins in fur and feathers so badly that beyond doubt, if they were able to formulate a religion, they would depict the Devil in human form.

Public opinion, a vulgar, impertinent, anonymous tyrant who deliberately makes life unpleasant for anyone who is not content to the average person.