沉默可以比言语更有力量。
"Silence can be more powerful than words."
Human beings, viewed as behaving systems, are quite simple. The apparent complexity of our behavior over time is largely a reflection of the complexity of the environment in which we find ourselves.
克服困难就是赢得机遇。
过去从未消逝，它甚至还未过去。
我们越是了解动物的真实本性，就越意识到我们与它们有多少共同之处。
逝者是我们的老师，如果我们懂得倾听。