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.

唯一真实的思想是那些不理解自身的思想。

最终，我们会记住的不是我们的敌人的话语，而是我们朋友的沉默。

大自然不会因为分析的困难而感到尴尬。