If you have one true friend you have more than your share.

In friendship as well as love, ignorance very often contributes more to our happiness than knowledge.

Be true to your work, your word, and your friend.

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

A true friend is the greatest of all blessings, and that which we take the least care of all to acquire.

It is important to our friends to believe that we are unreservedly frank with them, and important to friendship that we are not.

Never have a companion that casts you in the shade.

Depth of friendship does not depend on length of acquaintance.

A friendship founded on business is better than a business founded on friendship.

Friendship with ones self is all important, because without it one cannot be friends with anyone else in the world.