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The challenge of unifying all forces of nature is one that has driven theoretical physics for over a century.
统一自然界所有力的挑战是一个多世纪以来推动理论物理学发展的动力。
"We live in time—it holds us and moulds us—but I’ve never felt I understood it very well."
Science is a way of thinking much more than it is a body of knowledge.
一切人类知识都源于经验。