One cannot learn from someone whom one distrusts.

Worry is a cloud which rains destruction.

An egocentric pessimist is a person who thinks he hasn't changed, but that other people are behaving worse than before.

... when we are talking about 'Christians' and 'Moslems' we must first make sure that we are talking about people who have an idea, which should be more or less correct, as to what the other is supposed to believe and what he is expected to do as a consequence of that belief.

There is a Persian proverb: 'To test that which has been tested is ignorance.' To try to test something without the means of testing is even worse.

Trying to force something is the best way to stop it happening.

Exercise power by means of kindness, and you may be causing more damage than you could by cruelty. Neither approach is correct.