Without humility there can be no humanity.

John Buchan

The human race has improved everything, but the human race.

Adlai Stevenson

Try to exclude the possibility of suffering which the order of nature and the existence of free wills involve, and you find that you have excluded life itself.

C. S. Lewis

The greatest thing in the world is to know how to belong to oneself.

Michel de Montaigne

One is not called noble who harms living beings. By not harming living beings one is called noble.

Buddha

A well-educated mind will always have more questions than answers.

Helen Keller