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世界所有的前进动力都归功于不安分的人。幸福的人不可避免地把自己限制在古老的界限内。
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.
The pursuit of knowledge is a journey that never ends, and every discovery opens the door to new questions.
Innovation distinguishes between a leader and a follower.