可持续性不是一种选择；它是我们对后代的责任。

在独处中，我们发现自己的存在已经足够。

The world is full of magical things patiently waiting for our wits to grow sharper.

The greatest tragedy is not to die, but to be forgotten.

The interplay between discrete and continuous mathematics is where some of the most interesting problems lie.

过度捕捞只会让海洋资源枯竭，我们必须走绿色渔业之路。