Tennis is a brutal sport. There are no draws. If you lose, you’re out.
The dead speak through us, in our dreams, in our words.
贫穷并不等于缺乏意志力,而是缺乏选择。
The best thing about getting older is that you don't lose all the other ages you've been.
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。