Technology should serve both progress and preservation.

即使只有一毫粗疏的地方，就不能准确地认识事理，所以说一定要精确。不然，众说纷纭必会产生疑惑；仅存在一丁点杂念，便不能坚守事理，故而必须专心，否则在利害面前必定会经不起考验。

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.

The beauty of mathematics lies in its ability to describe the universe in the most elegant way possible.

时间的主要美在于你不能提前浪费它。下一年、下一天、下一小时都为你准备好了，就像你一生中从未浪费或误用一刻钟一样完美无瑕。