"To learn from a gentleman, you must first understand your own heart, know what you are raising, and then work hard to achieve it. The so-called self-evident and sincere. "

Sentence source: Song Chengyi's On Yan Zi's Good Learning, a concentrated famous sentence. This means that, for learning, a gentleman must first have a clear understanding of his learning goals, know how to cultivate his moral sentiments, and then practice and pursue perfection. That's what I mean. If you know your learning direction, you will naturally try to implement it.