The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
战略的核心包含三个要素:诊断、指导方针和连贯的行动。
丰田生产系统是通过消除浪费来节约资源的框架。
无畏并非毫无畏惧。对我来说,无畏是心怀恐惧、疑虑重重,却依然选择前行。