炼精化气,炼气化神,炼神还虚。
修炼内丹的三个阶段:将精转化为气,将气转化为神,最终将神归于虚无。
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.
大自然从不欺骗我们;欺骗我们的总是我们自己。