Tony, a friend of Michael's, explains to him that knowledge can only come through personal experience. Tony is most likely an empiricist in philosophy.
Empiricism is the philosophical school of thought that holds that all conceptions are products of experience, that all concepts are about or pertain to objects that can be experienced, or that all reasonable views or propositions can only be known or justified by experience.
Empiricism is the idea that all knowledge originates from sense experience. It emphasizes the importance of knowledge gained via experience and evidence, particularly sensory perception, in the development of ideas and holds that people can only know things after the fact (i.e. based on experience).
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