语言不仅仅是符号系统，还是具有社会和文化重要性的一组实践。

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

你对消极的人回应越少，你的生活就越平静。

Climate change and overfishing are twin threats we must tackle together.

Silence can be a powerful form of resistance.

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