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

Let there be no purpose in friendship save the deepening of the spirit.

It is more shameful to distrust our friends than to be deceived by them.

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

That friendship will not continue to the end which is begun for an end.

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

Since there is nothing so well worth having as friends, never lose a chance to make them.

The greatest sweetener of human life is Friendship. To raise this to the highest pitch of enjoyment, is a secret which but few discover.

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

There are no rules for friendship. It must be left to itself. We cannot force it any more than love.