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生命的歷史用化學語言書寫。

種一棵樹最好的時間是二十年前，其次是現在。

Mexico is a country that is always in the process of becoming, never quite arriving.

每一個人的靈魂都是一顆星星。

In times of crisis, true leadership is measured by actions, not words.

譯文：爽口的美食吃多了容易生病，高興的事過頭容易生出禍殃。賞析：任何看似令人爽口的食物吃多了，都會傷害身體，更何況那些垃圾食品呢。人在高興時，容易得意忘形，說話做事都有失妥當。

The material has its own intelligence.

The social responsibility of an enterprise is not just to make profits, but also to give back to society.

學習數學的唯一方法就是做數學。