A philosopher argued knowledge isn't a mirror reflecting reality at all

Richard Rorty challenged the idea, running through most of Western philosophy since Descartes, that the mind's job is to accurately mirror an external reality, with truth being whatever matches that reflection. Instead, he argued that justifying a belief is a social practice, a matter of what a community currently finds persuasive to say, not a matter of comparing a mental picture to the world. The book tried to dissolve centuries of debate about the nature of knowledge rather than solve it.

— Richard Rorty, Philosophy and the Mirror of Nature — Princeton University Press, 1979