石油化工行业的未来在于可持续发展。

We are all of us, in our different ways, seeking to escape the trap of our own minds.

The city is like a great palimpsest, a manuscript that has been written and rewritten over the centuries.

理解的提高有两个目标：首先，我们自己的知识增长；其次，使我们能够将这些知识传递给他人。