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

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

As iron sharpens iron, so a friend sharpens a friend.

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

True friendship ought never to conceal what it thinks.

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

Without wearing any mask we are conscious of, we have a special face for each friend.

Never explain - your friends do not need it and your enemies will not believe you anyway.

Each friend represents a world in us, a world not born until they arrive, and it is only by this meeting that a new world is born.

Friendship needs no words - it is solitude delivered from the anguish of loneliness.