There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth.

The true way and the sure way to friendship is through humility-being open to each other, accepting each other just as we are, knowing each other.

Friendship that insists upon agreement on all matters is not worth the name. Friendship to be real must ever sustain the weight of honest differences, however sharp they be.

Be slow to fall into friendship, but when you are in, continue firm and constant.

The beauty of enmity is insecurity; the beauty of friendship is in security.

I have friends in overalls whose friendship I would not swap for the favor of the kings of the world.