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。

Prolonged contact with the computer turns mathematicians into clerks and vice versa.

The customer’s satisfaction is the ultimate measure of our success.

在追求真理的过程中，我们必须准备好放弃那些与实验相矛盾的最珍视的信念。