"Learning is close to knowledge, doing is close to benevolence, and knowing shame is close to courage." A studious person, who opens his wisdom, understands the truth, then practices the truth and achieves the unity of knowing and doing, will have compassion and benevolence, and will make continuous progress in constant reflection and transformation. "I am three provinces, I am unfaithful? Don't believe in making friends? Can't you learn? " I will reflect on myself many times every day: have I done my best for others? Are you honest with your friends? Did the teacher review and practice the teaching method on time?