This I believe, while fully aware that it is just that: a belief. My working hypothesis about reality.
And that is the assumption that there is a truth, beyond what we can comprehend. The Truth does exist, me thinks.
But we are limited by our capabilities. We can only perceive so much.
Putting our knowledge together is a great way to know more. That is what science ideally does.
Fighting about who's view is 'The Truth' is way less productive, though...