Don't be afraid to ask questions. That's how you learn.

The past is a foreign country; they do things differently there.

我们都是自己经历的囚徒，然而我们永远无法完全理解它们。

A people without children would face a hopeless future; a country without trees would face a future with even less hope.

Remember, hope is a good stuff, maybe the best thing, and no good stuff will fade away!