Laymens terms:
We can't help it if others think our beliefs are nonsense. If they could just suspend reality and not question us they would be like us.
Not even close. He said that one should say what they have to say the very best they can say it, and shut up.
BTW, he did. He followed this statement with approx. 400,000 words on the subject at hand (that's well over 1000 small print, closely spaced, narrow margined pages in modern book format).