沉默越深，词语越响亮。

创新是在竞争激烈的行业中保持领先的关键。

Words can be tools， but they can also be weapons.

The beauty of instrumental variables is that they allow us to see the world in a new light.

没有坚强意志品质的人学识智慧也不会通达;不遵守诺言的人行动也不会实现。