As iron sharpens iron, so a friend sharpens a friend.

It is one of the blessings of old friends that you can afford to be stupid with them.

Rejoicing in our joy, not suffering over our suffering, makes someone a friend.

Friendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.

Never make friends with people who are above or below you in status. Such friendships will never give you any happiness.

Friendship is something that creates equality and mutuality, not a reward for finding equality or a way of intensifying existing mutuality.

Even where friendship is concerned, it takes me a long time to trust people.

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

Mighty proud I am that I am able to have a spare bed for my friends.

Friendship... is not something you learn in school. But if you haven't learned the meaning of friendship, you really haven't learned anything.