'''Thomas Kuhn''' in his most famous work states that ''science cyclically passes through some phases indicative of its operation''.<ref>Thomas Samuel Kuhn (Cincinnati, 18 julio 1922 – Cambridge, 17 junio 1996) was an American philosopher of science.<br>See Treccani, ''[http://www.treccani.it/enciclopedia/thomas-samuel-kuhn/ Kuhn, Thomas Samuel]''. Wikipedia, ''[[:wikipedia:Thomas Kuhn|Thomas Kuhn]]''.
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'''Thomas Kuhn''' in his most famous work states that ''science cyclically passes through some phases indicative of its operation''.<ref>Thomas Samuel Kuhn (Cincinnati, 18 julio 1922 – Cambridge, 17 junio 1996) was an American philosopher of science.<br>Ver Treccani, ''[http://www.treccani.it/enciclopedia/thomas-samuel-kuhn/ Kuhn, Thomas Samuel]''. Wikipedia, ''[[:wikipedia:Thomas Kuhn|Thomas Kuhn]]''.