修炼的四个阶段：将精转化为气，气转化为神，神回归虚无，最终与道合一。

Overfishing is a theft from future generations—we must be the generation that stops it.

The elephant is where the action is. The rider is there to serve the elephant.

The rules of survival never change, whether you’re in a desert or in an downtown street: you need to be hydrated, you need food, and you need shelter.

"The truth has never been of any real value to any human being - it is a symbol for mathematicians and philosophers to pursue. In human relations kindness and lies are worth a thousand truths."

物理学中的每一个发现都打开了一个新的问题领域，提醒我们追求知识是一个无尽的旅程。