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【釋義】：禮節(jié)重在相互回應(yīng)。送出禮遇而對方不回應(yīng)，這是不合禮數(shù)的；接受了別人的禮遇卻不回報，同樣也是不符合禮的要求。

科學(xué)是我們解開生命之謎的工具。

The total amount of suffering per year in the natural world is beyond all decent contemplation. During the minute that it takes me to compose this sentence, thousands of animals are being eaten alive, many others are running for their lives, whimpering with fear, others are slowly being devoured from within by rasping parasites, thousands of all kinds are dying of starvation, thirst, and disease.

我對我生命中的一切心存感激。

唯一真實(shí)的旅程是內(nèi)心的旅程。