Without sincerity, one cannot investigate principle to the utmost. Sincerity is the controlling factor in one's nature. It is beyond space and time. He who acts in accordance with the Principle of Nature will have the entire process of creation in his grip. When the Principle of Nature is achieved, not only his personality, but his mind also are enriched. And not only his mind but his nature and destiny are enriched. To be in accord with principle is normal, but to deviate from principle is abnormal.

(Shao Yong)