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

Friendship multiplies the good of life and divides the evil.

The language of friendship is not words but meanings

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

Instead of loving your enemies - treat your friends a little better.

Depth of friendship does not depend on length of acquaintance.

Yes'm, old friends is always best, 'less you can catch a new one that's fit to make an old one out of.

Peace, commerce and honest friendship with all nations entangling alliances with none.

Friendship is a plant of slow growth and must undergo and withstand the shocks of adversity before it is entitled to the appellation.

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