A true friend freely, advises justly, assists readily, adventures boldly, takes all patiently, defends courageously, and continues a friend unchangeably.
One's friends are that part of the human race with which one can be human.
friends, human race, friendship,
Friendship is unnecessary, like philosophy, like art... It has no survival value rather it is one of those things that give value to survival.
unnecessary, philosophy, friendship
Friendship with ones self is all important, because without it one cannot be friends with anyone else in the world.