The past is a map, showing us where we have been.
【译文】 孔子说：“吃粗粮、喝白水、弯着胳膊当枕头，乐也在其中了！缺少仁义的富贵，对我来说，就象天上的浮云。”
The true cost of food isn't just what you pay at the store—it's what the planet pays over time.
在代数中，两个量的相等性通过方程来表达。