要知道,终有一天,我们会是自由的。
The young do not know enough to be prudent, and therefore they attempt the impossible – and achieve it, generation after generation.
大分子的概念并不容易被接受;它需要化学家对物质结构的思考方式发生彻底的改变。
The past is a kind of shadow which is always there, whether you choose to ignore it or not.