Each of us is the author of our own story, though sometimes we cannot control the ending.

地球上生命的未来取决于我们采取行动的能力。许多人正在尽其所能，但只有我们的社会、经济和政治发生变化，才能取得真正的成功。

The interplay between topology and quantum mechanics is a rich field of study that continues to surprise us with its depth and complexity.

试管婴儿的成功证明了科学家和临床医生之间合作的力量。

You take delight not in a city’s seven or seventy wonders, but in the answer it gives to a question of yours.