The truest test of independent judgment is being able to dislike someone who admires us, and to admire someone who dislikes us.

Nobody can be so amusingly arrogant as a young man who has just discovered an old idea and thinks it is his own.

Ignorance per se is not nearly as dangerous as ignorance of ignorance.

Ninety per cent of the world's woe comes from people not knowing themselves, their abilities, their frailties, and even their real virtues. Most of us go almost all the way through life as complete strangers to ourselves - so how can we know anyone else?

A winner knows how much he still has to learn, even when he is considered an expert by others; a loser wants to be considered an expert by others before he has learned enough to know how little he knows.

The difference between patriotism and nationalism is that the patriot is proud of his country for what it does, and the nationalist is proud of his country no matter what it does; the first attitude creates a feeling of responsibility, but the second a feeling of blind arrogance that leads to war.

Happiness held is the seed; happiness shared is the flower. A truly happy person is one who can enjoy the scenery while on a detour. Happiness is a direction, not a place.