估计问题的性质与检验统计假设的问题不同。

效率和道德必须齐头并进；没有另一方，任何一方都无法蓬勃发展。

History is not just the story of the past, but a mirror to the present and a window to the future.

"I think that the only way to deal with life is to find something that you love and do it with all your heart."

金钱的匮乏是所有罪恶的根源。

我们都是成功祖先的后代；失败者没有留下后代。