The key to trading success is to have a solid understanding of market dynamics.

"The dawn right before the sun rises is the darkest."

The key to understanding human cognition is to understand how symbols are manipulated.

译文：一句话不小心就会招致祸患，一件事不小心就会玷污名节。赏析：口无遮拦的人迟早会给自己带来祸患，行为不检点之人更会玷污自己的名节。我们的一言一行不仅关乎名节，更关乎性命，所以，我们要谨言慎行。

父亲过于慈爱，不忍心鞭策子女，那么家里就容易出现品德败坏的子女。