He who is not able to make new friends is unaware of the art of life.
The blessing of old friends is that with them you can still be an idiot.
(Ralph Waldo Emerson said)
Fortune games test the trust between friends.
It is better to be deceived by your friends than for them to be deceived by you.
(Johann von Goethe said)
Be kind to everyone but friends with a few. And test those few before you trust them.