Depth of friendship does not depend on length of acquaintance.

Friendship with ones self is all important, because without it one cannot be friends with anyone else in the world.

Friendship improves happiness and abates misery, by the doubling of our joy and the dividing of our grief.

I value the friend who for me finds time on his calendar, but I cherish the friend who for me does not consult his calendar.

There is nothing on this earth more to be prized than true 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.

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

Accountability in friendship is the equivalent of love without strategy.

True friendship ought never to conceal what it thinks.

Peace and friendship with all mankind is our wisest policy, and I wish we may be permitted to pursue it.