整个有机体最复杂的反射就是所谓的本能。
The reality is: sometimes you lose. And you're never too good to lose. You're never too big to lose. You're never too smart to lose. It happens.
忠于你的心，它知道方向。
——《在沪举办茶话会上的演说》（1916年7月17日）
每一个天使都是可怕的。
Efficiency is highly overrated； Goofing off is highly underrated. Regularly scheduled sabbaths， sabbaticals， vacations， breaks， aimless walks and time off are essential for top performance of any kind. The best work ethic requires a good rest ethic.
"I must say a word about fear. It is life's only true opponent. Only fear can defeat life."
最好的模型是能够解释数据的最简单模型。