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如果你很难想象股市会损失 20%,你就不应该在股票中。
"The beauty of discovery lies in the unexpected connections we find."
The American farmer is the only man in our economy who has to buy everything he buys at retail, sell everything he sells at wholesale, and pay the freight both ways.
每个数学问题都有一个解决方案;这只是找到正确视角的问题。