Friendship is always a sweet responsibility, never an opportunity.
friendship, sweet responsibility, an opprtunity
A quarrel between friends, when made up, adds a new tie to friendship.
quarrel, friends, new tie to friendship
Rejoicing in our joy, not suffering over our suffering, makes someone a friend.
rejoicing, joy, suffering, friendship
I have friends in overalls whose friendship I would not swap for the favor of the kings of the world.
A man's friendships are one of the best measures of his worth.
friendship, best measures, worth
There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth.
self interest, bitter truth, friendship