It has been said that science is the orderly collection of facts about the natural world. Scientists, however, are wary of using the word ‘fact.’ ‘Fact’ has the feeling of absoluteness and universality, whereas scientific observations are neither absolute nor universal.
据说科学是自然世界的有序集合.科学家对使用fact迟谨慎态度.fact的感觉既不是绝对的也不是完全的，然而科学观察既不是绝对的也不是完全的.
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