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。
过去不是静止的画卷，它随我们而动，随我们的变化而变化。
在爱情中我们都是傻瓜。
诗歌是心灵的语言。
The writer must be a defender of the individual against the tyranny of the collective.
The concept of computational efficiency is central to the design of learning algorithms.
All interest in disease and death is only another expression of interest in life.