“其它所有疑问都位于这个奥秘的下游，”Ann Druyan，作者并作为天文学家Carl Sagan的遗孀说，“这对我来说很重要，因为我是人，人类不喜欢未知之谜。”

"All other mysteries lie downstream of this question," said Ann Druyan, the author and widow of astronomer Carl Sagan. "It matters to me because I am human and do not like not knowing."

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