The only thing worse than training employees and losing them is not training them and keeping them.

Every mathematical problem is a window into a deeper understanding of the world.

"Every story is a journey, and every character is a reflection of the human experience."

指修炼内丹时阳气初动的微妙时刻，象征天地未开、万物未生的混沌状态。

"The world is full of obvious things which nobody by any chance ever observes."