科学的进步不仅依赖于知识的积累，还需要有挑战未知的勇气。
让你难过的事情，有一天，你一定会笑着说出来。
"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."
We are all time travelers in the river of DNA.
