大知闲闲，小知间间。
大智慧的人广博豁达，小聪明的人斤斤计较。
The interplay between light and matter at attosecond timescales reveals a universe far more dynamic than we ever imagined.
Freedom is a condition of mind,and the best way to secure it is to breed it.
音乐让我学会了如何面对挑战。