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 best investment you can make is in yourself.
The most successful companies are those that see challenges as opportunities to innovate and grow.
学者学习古人，开始时接触到的是粗浅的内容，中期接触到精华，最终领悟到其神妙变化。
The beauty of mathematics lies in its ability to describe the universe in the most abstract terms.
The only thing we can know is that we know nothing and that is the highest flight of human wisdom.