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A mind free from cares and fears is needed to experience true happiness.
需要一颗没有烦恼和恐惧的心才能体验真正的幸福。
Global challenges require global thinking and local action.
拓扑绝缘体的美在于它们的鲁棒性;它们的表面态受到保护,不受无序和缺陷的影响。
We are on the verge: Today our program proved Fermat's next-to-last theorem.