When people are faced with a problem, they often think in terms of past experiences rather than looking at the actual structure of the problem.

The beginning is always today.

"The only way to get rid of a temptation is to yield to it."

中年之后，只有已为告别人生做好准备的人，才能继续在生活中朝气蓬勃。

数学思想的真正考验是它能否激发进一步的思考。

Courage is not the absence of fear, but the triumph over it.

人的救赎需要三样东西：知道他应该相信什么，知道他应该渴望什么，知道他应该做什么。