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Leadership is not about being in charge. It's about taking care of those in your charge.
数学家是能在定理之间找到类比的人;更好的数学家是能在证明之间看到类比的人;而最好的数学家是能注意到理论之间类比的人。
The art of pricing is not in setting the price, but in designing the process that reveals the true value.