There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth.

It is not so much our friends' help that helps us, as the confidence of their help.

Walking with a friend in the dark is better than walking alone in the light.

Fear makes strangers of people who would be friends.

Friends show their love in times of trouble, not in happiness.

Success always necessitates a degree of ruthlessness. Given the choice of friendship or success, I'd probably choose success.

Never have a companion that casts you in the shade.

True friendship can afford true knowledge. It does not depend on darkness and ignorance.

Caring for but never trying to own may be a further way to define friendship.

I always felt that the great high privilege, relief and comfort of friendship was that one had to explain nothing.