Teaching is the most glorious profession under the sun.

"To live is the rarest thing in the world. Most people exist, that is all."

煤炭不是问题所在，问题在于我们如何使用它。解决方案在于更清洁的技术和更好的利用。

The road to success is always under construction.

我不喜欢被贴标签。

从事物的本质来看，权力必须制约权力。