Be courteous to all, but intimate with few, and let those few be well tried before you give them your confidence.

The language of friendship is not words but meanings.

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

Instead of loving your enemies - treat your friends a little better.

An excellent man he has no enemies and none of his friends like him.

Caring for but never trying to own may be a further way to define friendship.

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

Each friend represents a world in us, a world not born until they arrive, and it is only by this meeting that a new world is born.

Friendship without self-interest is one of the rare and beautiful things of life.

Friendship, like the immortality of the soul, is too good to be believed.