可持续性不是一种趋势，而是我们对后代的责任。

A nation's memory is its most contested territory.

生命短暂，让它甜美。

问题的数学表述通常比其解决方案更重要，后者可能仅仅是数学或实验技巧的问题。

Sometimes you don't need a goal in life, you don't need to know the big picture. You just need to know what you're going to do next!