Week 1 summary

First week of Spring Quarter:
1. dropped all the irrelevant courses. ( Lesson: Always be concentrated! 操作系统的教材开篇就是一句名言: If it is good for everything, it is good for nothing. )

2. First time swim 1,000 m in free style, 突然有点明白老毛为什么喜欢游长江了，因为在水底可以及其安静的思考。