The world is a great river, and we are the fish.

传记是最亲密的历史形式。

Beauty comes from the way things are used, not just from their appearance.

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.

最终，我们将记住的不是敌人的话语，而是朋友的沉默。

如果我们现在不采取行动，过度捕捞将成为我们的孩子要偿还的债务。

The only way to learn mathematics is to do mathematics.

不确定性不能成为不作为的借口。