世界的眼泪是恒定的。每当一个人开始哭泣，另一个地方就有一个人停止哭泣。笑声也是如此。
The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.
我使用的材料是时间的见证。
The art of teaching consists in large part of the ability to awaken the natural curiosity of young minds and to satisfy it with the nourishment of knowledge.
I think the best movies are the ones that make you feel something.
The only way to do great work is to love what you do.
Climate change isn't a future threat - it's reshaping our fields today.
适度的精神也应该是立法者的精神。
Humility is the mark of a great leader.