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今天种下的每一棵树都是对未来的投资。
成功是一段旅程,而不是终点。关键在于你在途中取得的进步。
数学直觉就像肌肉一样 - 通过锻炼会变得更强大。
The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.
Civilization is not inherited; it has to be learned and earned by each generation anew.