数学中最重要的是理解概念，而不仅仅是记忆公式。
The most important thing in mathematics is to understand the concepts, not just to memorize the formulas.
"Writing is a way to explore the depths of our emotions."
过去并非静止，它随着我们的理解而演变。
The true journey of discovery consists not in seeking new landscapes, but in having new eyes.
The secret of being miserable is to have leisure to bother about whether you are happy or not.
The difference between correlation and causation is not just academic—it can have profound policy implications.
阅读是穿别人的鞋子走路；写作是留下自己的足迹。
Democracy is the worst form of government except for all those other forms that have been tried from time to time.