Don't just fight in the North or the South. Always imagine every battle in your mind, where everyone is both your enemy and your friend, and all possible events happen simultaneously. That way, nothing will take you by surprise, and everything that happens will be something you've already imagined.
"History is not just what happened, but what people thought and felt about it."
Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.
不要试图去做一个成功的人,要努力成为一个有价值的人。