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In contrast to this approach , Michael Polanyi argued that a structure of liberty is essential for the advancement of science – that the freedom to pursue science for its own sake is a prerequisite for the production of knowledge through peer review and the scientific method .
 Michael Polanyi
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Michael Polanyi