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。
Natural experiments can provide valuable insights into economic questions.
In steel, as in life, resilience determines how far you can go.
人生的主要任务就是:识别并分离那些不属于我们自己的东西,以便我们能成为自己。
Silence can sometimes be more powerful than words.