A shortage is a sign that somebody is keeping the price artificially lower than it would be if supply and demand were allowed to operate freely.
短缺乃是一种符号，它意味着价格被人为地保持在低于供求双方可以自由行事时的水平。
如果一个问题无法解决，那就扩大它的范围。
There are no permanent trends, only permanent users.
文化是我们所做一切的基础。
In chemistry, as in life, the most transformative reactions often occur at the boundaries between disciplines.
绘画是探索可见与不可见之界限的行为。
In the end, the goal of computer science is not just to build faster machines, but to deepen our understanding of the universe.