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我们常常认为幸福是得到我们想要的,但它更多的是关于珍惜我们已有的。
Every note has to mean something.
The leather industry must evolve or risk becoming obsolete.
Investing in cleaner coal technologies is investing in our planet's future.
【释义】:礼节重在相互回应。送出礼遇而对方不回应,这是不合礼数的;接受了别人的礼遇却不回报,同样也是不符合礼的要求。
In mathematics, the art of proposing a question must be held of higher value than solving it.