Friendship is the shadow of the evening, which increases with the setting sun of life.

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

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

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

Depth of friendship does not depend on length of acquaintance.

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

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

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

To like and dislike the same things, this is what makes a solid friendship.

Friends show their love in times of trouble, not in happiness.