When a thing is said to be not worth refuting you may be sure that either it is flagrantly stupid - in which case all comment is superfluous - or it is something formidable, the very crux of the problem.
But it was ever thus, all through my life: whenever I have diverged from custom and principle and uttered a truth, the rule has been that the hearer hadn't strength of mind enough to believe it.
Buddha renounced every worldly happiness because he wanted to share with the whole world his happiness which was to be had by men who sacrificed and suffered in the search for truth.