There is no greater virtue in this world than proving kind and trustworthy to one's friend, worthy of his confidence. The difference between the old soul and the young soul is to be found in this particular principle. The young soul only knows himself and what he wants, absorbed in his own pleasures and displeasures and obsessed by his ever-changing moods. The old soul regards his relation to every soul, he keenly observes his obligations towards everyone he knows in the world. He covers his wounds, if he happens to have any, from the sight of others, and endures all things in order to fulfil his duty to the best of his ability towards everyone in the world.