friend is one who knows you and loves you
Never explain - your friends do not need it and your enemies will not believe you anyway.
friends, explain, believe, enemies
Caring for but never trying to own may be a further way to define friendship.
FRIENDSHIP, FURTHER WAY TO DEFINE FRIENDS
A true friend is the greatest of all blessings, and that which we take the least care of all to acquire.
Peace, commerce and honest friendship with all nations entangling alliances with none.
Friendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.