真相很少是纯粹的，也从来不是简单的。

因果推理需要仔细思考分析背后的假设。

Technology innovation is the key to solving the trilemma of energy security, environmental protection and economic development.

书籍是最安静、最恒久的朋友；它们是最易接近、最睿智的顾问，也是最耐心的老师。

The idea that a bell rings to signal when investors should get into or out of the stock market is simply not credible.

The pursuit of mathematical knowledge is a journey that never ends.