在科学中，我们试图解释我们不理解的事物。在数学中，我们试图理解我们无法解释的事物。
In science, we try to explain what we don't understand. In mathematics, we try to understand what we can't explain.
声音是灵魂的镜子。
There is danger from all men. The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty.
Purposive behavior in animals and men.
“我们唯一需要决定的是如何利用给予我们的时间。”
