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Every book is a quotation; and every house is a quotation out of all forests, and mines, and stone quarries; and every man is a quotation from all his ancestors.
"Causal inference requires careful thought about the assumptions underlying your analysis."
We don't inherit the oceans from our ancestors; we borrow them from our children.
出自北齐·颜之推《颜氏家训·勉学》。积累财富千万,也胜不过多读些书有用。古代有“书中自有黄金屋,书中自有颜如玉”的说法,读好书就能财源滚滚、美女满室。这句话意在强调读书以立世的重要意义。