One of the first things taught in introductory statistics textbooks is that correlation is not causation. It is also one of the first things forgotten.
改进程序的最好方法是重写它。
"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."
我们水域的健康直接关系到我们社区的健康。
我不会让世界定义我的美。
I'm not a pessimist. I'm an optimist trained in realism.