"Complexity theory teaches us that not all problems are created equal; some are inherently harder than others."
【译文】 孔子说:“祭奠别人的先人,是谄媚;遇到符合道义的事不敢做,是懦夫。”
剑鞘保护剑的锋利,自己却满足於它自己的迟钝。