伦理学的任务不是提供答案，而是澄清问题。

In mathematics, the most profound ideas often arise from the simplest observations.

Being able to do what you love for a living is a blessing.

A leader does not deserve the name unless he is willing occasionally to stand alone.

海洋不仅是一种资源，更是我们必须为子孙后代承担的责任。