The challenge of acting is not to show, but to reveal.

石墨烯是一种灰姑娘材料：它一直存在，但没有人注意到它。

Though you think the world is at your feet, it can rise up and tread on you.

有钱人说真话有人相信，贫穷人说话别人怀疑不相信。

The first task is to understand the problem, the second to find a solution, and the third to carry it out.

持续改进不是可选项，而是必须项。