"Courage is not the absence of fear, but the triumph over it."

权力在黑暗中保持强大；一旦暴露在阳光下，它就开始蒸发。

【释义】：慷慨但不浪费，节俭却不吝啬。  

交易成功的关键是情绪纪律。

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.