History is that certainty produced at the point where the imperfections of memory meet the inadequacies of documentation.
"A book is a dream that you hold in your hand."
译文：不务正业的人如果能迷途知返，仍然是一个正人君子；高贵的人误入歧途，便会被庸人嘲笑。赏析：过去的错误已无可挽回，但未来的路还可以追寻。人犯错误不可怕，就怕一错再错，不知悔改。
"The power of machine learning lies in its ability to discover patterns and relationships in data that are not immediately obvious to human observers."