Therefore the wise are thankful when they see anybody with a more or less friendly inclination towards them, and make the best of the opportunity by gaining three benefits from it: the first, that by being friends with someone a person develops in himself the spirit of friendliness; the second, that one adds one more to the circle of one's friends; and the third, the joy of exchanging love and kindly feelings, which is greater and better than anything in the world. There is nothing but benefit in widening one's circle of friends, and there is nothing but loss when one loses a friend from one's circle.