One who makes himself a worm cannot complain afterwards if people step on him.

Maturity is having the courage to use one's own intelligence!

Always treat people as ends in themselves, never as means to an end.

Marriage...is the union of two people of different sexes with a view to the mutual possession of each other's sexual attributes for the duration of their lives.

When I could have used a wife, I could not support one; and when I could support one, I no longer needed any

The more we come in contact with animals and observe their behaviour, the more we love them, for we see how great is their care of the young.

All perception is colored by emotion.