The supreme quality for leadership is unquestionably integrity. Without it， no real success is possible， no matter whether it is on a section gang， a football field， in an army， or in an office.

人们为了保护自己不受伤害，会伤害他人。

实验的语言比任何推理都更具权威性：事实可以摧毁我们的推理，但反之则不然。