Use the excerpt from Bacon's The Advancement of Learning below to answer the following question:

"Another error hath proceeded from a kind of adoration of the mind and understanding of man; by means whereof men have withdrawn themselves away from the contemplation of nature, and the observations of experience, and have tumbled up and down in their own reason and conceits. Upon these Heraclitus gave a just censure, saying, MEN SOUGHT TRUTH IN THEIR OWN LITTLE WORLDS, AND NOT IN THE GREAT AND COMMON WORLD."
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How does Sir Francis Bacon criticize previous scientific methods in the quote above?