心灵是一个相互作用元素的复合体。
The mind is a complex of interacting elements.
Small changes in the environment can have big effects on behavior.
The art of progress is to preserve order amid change and to preserve change amid order.
"Love is not a thing to be understood, but to be felt."
成功不是幸福的关键。幸福才是成功的关键。如果你热爱你所做的事情，你就会成功。
The great powers are always searching for opportunities to gain power at the expense of their rivals, which makes them inherently aggressive.