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

The most I can do for my friend is simply be his friend.

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

A true friend never gets in your way unless you happen to be going down.

Be slow to fall into friendship but when thou art in, continue firm and constant.

Depth of friendship does not depend on length of acquaintance.

Never contract friendship with a man that is not better than thyself.

A friend may well be reckoned the masterpiece of nature.

One of the most beautiful qualities of true friendship is to understand and to be understood.

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