All this worldly wisdom was once the unamiable heresy of some wise man.

Most of what now sounds obvious was once unwelcome. Someone said it before it was comfortable and was disliked for saying it, and only later did the sentence smooth out into common sense. So the ideas that irritate you today are not automatically wrong; some of them are simply early.

When something you hear makes you bristle, wait before dismissing it and see whether the discomfort is about the claim or about who made it. Give a strange idea a week of honest attention. You will discard most of them, and that is fine; the point is not to discard them reflexively.