Self-discipline

1. Only do three things: study, make money, and exercise.

2. Only read three kinds of books: history, business, and marketing.

3. Only make friends with three kinds of people: those who are capable, have ideas, and have execution.

4. Only trust three kinds of people: those who talk to me when I am upset, those who help me when I am down, and those who don’t come to me when I am at my peak.

5. Only watch three kinds of videos: those that can improve my cognition, those that can let me learn knowledge, and those that I can use immediately.