True leaders don't command others what to do; they inspire their potential.

困难坎坷是人们的生活教科书。

Productive thinking is characterized by the sudden appearance of the solution as an insight.

释义：将煮沸的热水扬起以停止其沸腾，不如抽掉下面的木材。处理任何问题时，与其用凑合的办法应付，不如从根本上彻底解决。