Even where friendship is concerned, it takes me a long time to trust people.

Peace, commerce and honest friendship with all nations entangling alliances with none.

Depth of friendship does not depend on length of acquaintance.

Success always necessitates a degree of ruthlessness. Given the choice of friendship or success, I'd probably choose success.

True friendship can afford true knowledge. It does not depend on darkness and ignorance.

Friendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.

Am I not destroying my enemies when I make friends of them?

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

Our friends interpret the world and ourselves to us, if we take them tenderly and truly.

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