What is necessary is to develop a sympathetic nature and to sustain its gradual growth. Just as it is difficult for the student of voice-culture to practice with his voice and yet not to let it be spoiled, so it is with a sympathetic person. While developing, he runs the risk of spoiling the faculty of sympathy; in other words, the more loving a person, the more chance he has of being disappointed. The greater the love, the greater the fragility of the heart and the more susceptible it becomes to everything, until it can break at any moment. The one who walks in the path of sympathy should take great care that his way is not blocked; everything will be trying to block his way, and it is his own perseverance that will keep it open.