Michael Polanyi (1891-1976) was a Hungarian-British scientist and philosopher. He opposed a positivist account of science and advocated that there are several levels to reality. He distinguished between tacit and explicit knowledge.
Survey articles and organizations on Michael Polanyi include:
Wikipedia contributors. (2019, April 16). Michael Polanyi. In Wikipedia, The Free Encyclopedia. Retrieved 19:51, May 14, 2019, from https://en.wikipedia.org/w/index.php?title=Michael_Polanyi&oldid=892674680
The Polanyi Society's webpage is http://polanyisociety.org/.
The Michael Polanyi Liberal Philosophical Association website is http://www.polanyi.bme.hu/periodical/period.php?lang=en.