The most important political development of the last half century has been the spread of liberal democracy around the world.

To write is to make the invisible visible.

释义：用兵讲究诡诈，要善于伪装迷惑对手。

The universe is not only stranger than we imagine, it is stranger than we can imagine.

水产养殖的创新不仅仅是技术问题，更是理解自然的节奏并与之合作。