In business, as in life, integrity is the currency that never loses value.

"Theatre is the art of making the invisible visible."

权力从来不是无辜的，无辜从来不是强大的。

估计问题的性质不同。在这里，我们不关心检验特定的假设，而是关心估计参数的值。

Life is short, and it’s up to you to make it sweet.

The greatest tragedy is not death, but forgetting one's mother tongue.

Education is the most powerful weapon which you can use to change the world.