The probable error of a correlation coefficient is not a fixed quantity, but depends upon the size of the sample.
相关系数的可能误差不是一个固定的量，而是取决于样本的大小。
You have to be willing to be alone to be a writer.
The only limits that exist are the ones in your mind.
The only way to discover the limits of the possible is to go beyond them into the impossible.
Part of company culture is path-dependent—it's the lessons you learn along the way.
创业就是一场没有终点的马拉松，只有坚持到最后的人才能看到胜利的曙光。