History has neither the desire nor the capacity to make men better or worse; it merely records what they have been and what they have done.

史记

可持续性不是一种选择，而是唯一的出路。

There is no better teacher than history in determining the future……There are answers worth billions of dollars in a history book.

词汇不仅仅是声音或符号，而是事实的标志。