解釋：情緒變化會影響身體生理反應(yīng)，如貪心時口水增多，悲哀時流淚，體現(xiàn)了情緒與健康的關(guān)聯(lián)。
我們都只是曾經(jīng)存在的某種東西的回聲。
The steel industry must embrace sustainability or risk becoming obsolete.
I cannot believe in a God who wants to be praised all the time.
最好的想法往往來自最接近問題的人。
I don't want to be a star. I want to be an actor.
科學(xué)的精神在于不斷質(zhì)疑和探索，它讓我們永遠(yuǎn)保持對世界的好奇心。
The best stories are those that make us see ourselves in others.