在没有其他信息的情况下，参数的最佳估计是其样本值。

The greatest performance improvement of all is when a system goes from not working to working.

It is not unlikely, but that there may be yet invented several other helps for the eye, as much exceeding those already found, as those do the bare eye.

A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying.

你不能只是坐在那里等待生活来找你，你必须去争取它。

胜利很棒，但最重要的是不断进步并从每场比赛中学习。

"The power of words can change the world, one reader at a time."

文学是可见与不可见、可说与不可说之间的桥梁。