To be a father is to be condemned to watch your child grow up.
最深刻的真理往往是我们最害怕的那些。
the most famous composer in the world but was utterly miserable most of the time, and of the reasons was because he always overspent his income.This was Mozart.If Mozart couldn't get by with this kind of asinine conduct, I don't think you should try.
The best books are those that leave you changed.
相关系数的可能误差不是可以从第一原理推导出来的东西，而是必须通过经验找到的。