True leadership means listening—especially to those who disagree with you.

我不是为了解释而写作，我是为了迷惑而写作。

But it is the same with man as with the tree. The more he seeks to rise into the height and light, the more vigorously do his roots struggle earthword, downword, into the dark, the deep - into evil.

〈军人精神教育〉，在桂林对滇赣粤军的演说，1921年12月10日

预测蓬勃发展的积极情绪与消极情绪的比例约为3比1。高于这个比例，人们往往会蓬勃发展；低于这个比例，人们往往会萎靡不振。