As an atheist, I obviously disagree. Purpose and meaning have to be based in truth, scientific truth, if you will. Otherwise, you run the risk of harming someone. Dogmatic belief systems based on revelation are risky at best.
I couldn't get past what Plato would call 'shadows on a cave wall' when it comes to finding 'truth' but once again, I am probably not reading the right people or the 'right works'. If you have anything you'd recommend I'd love to read it.
I did not say that. I think I said purpose and meaning need to be grounded in facts / science and should not be derived from belief systems based on "revelation" and other collective delusions.