可持续发展不再是选择，而是生存的必需。

计算的本质不仅在于符号的操作，更在于对这些操作所代表意义的深刻理解。

The past is a foreign country; they do things differently there.

我不是说唱歌手，我是一个改变世界的人。

Never risk more than you can afford to lose.

从近处看，生活是悲剧；从远处看，生活是喜剧。

With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.