The method of introspection must be rigorously controlled.

投资者需要学会控制自己的情绪，不要被市场情绪左右。

The problem isn't that Johnny can't read. The problem isn't even that Johnny can't think. The problem is that Johnny doesn't know what thinking is; he confuses it with feeling.

或许你能少说点？

天地间万事万物的本质，惟有心静的人才能体味出来；天地间万事万物的规律，惟有心静的人才能彻底掌握。