- Albert Einstein
https://www.ige.ch/en/about-us/einstein/einstein-at-the-pate...
"He was denied any teaching position from just about every major University in Europe. This was mostly based on the fact that Albert approached Physics as a "New age day dreamer" (e.g.: thought experiments) rather than primarily from mathematical models or experimental insights. One way he dealt with the rejections was through a discussion group he formed with other workers at the Patent office that he self-mockingly named "The Olympia Academy", which met regularly to discuss science and philosophy. They studied the works of Henri Poincaré, Ernst Mach, and David Hume, which influenced his scientific and philosophical outlook."
https://www.quora.com/How-many-patents-did-Albert-Einstein-h...