Go up close to your friend, but do not go over to him! We should also respect the enemy in our friend.

Look at market fluctuations as your friend rather than your enemy; profit from folly rather than participate in it.

There will be but few people who, when at a loss for topics of conversation, will not reveal the more secret affairs of their friends.

An insincere and evil friend is more to be feared than a wild beast; a wild beast may wound your body, but an evil friend will wound your mind.

One best book is equal to hundred good friends but one good friend is equal to a library

Shared joys make a friend, not shared sufferings.