Since we (humans) basically cannot even agree on what "truth" is, what "knowledge" is, or what even a "fact" is, it makes a lot of sense that all of those things would be different, since we there is no consensus on what they mean. We even have a whole field about it, epistemology, where people been arguing for millennia about what those things mean.
Question is, what are you trying to say with that, and how does it relate to the quote?
Question is, what are you trying to say with that, and how does it relate to the quote?