"Truth" that is metaphysically based in mysticism -- where concepts are not integrated using reason -- seldom passes the test of time; and when such "truth" fails the test of reason, it generally does bend to what man says ...
But "truth" metaphysically based in reality, being epistemologically based in reason, seldom fails over time -- with new such truths often making it into textbooks and advancing humanity further beyond those conditions associated with the dark ages.