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Never stop learning. The minute you think you know it all is the minute you stop growing.

I went to the woods because I wanted to live deliberately. I wanted to live deep and suck out all the marrow of life. To put to rout all that was not life. And not, when I had come to die, discover that I had not lived.

都是出賣，賣給中原各國也可以，何必非要賣給越國呢？?

量入為出，儲蓄投資。學習你需要學習的東西。