科学的美在于它能不断给我们带来惊喜。
It is not a very fragrant world, but it is the world you live in.
无论他做什么,地球上的每个人在世界历史中都扮演着核心角色。而通常他并不知道这一点。
Don't use tactical diligence to cover up strategic laziness.
黑夜无论怎样悠长,白昼总会到来。
The young do not know enough to be prudent, and therefore they attempt the impossible, and achieve it, generation after generation.