过去总是紧张的，未来是完美的。

Happiness is not about having more, but caring less.

Innovation in fishing technology can help us harvest the sea’s bounty without depleting it.

数学不是观赏性运动，你必须参与其中才能理解。

我们为新南开所抱的志愿，不过是‘了解中国，服务中国’这两句话。