What can be asserted without proof can be dismissed without proof.

“I have the impression that if the "armchair generals" arguers got their way and…”

“As he defended the book one evening in the early 1980s at the Carnegie Endowmen…”

“Literature, not scripture, sustains the mind and—since there is no other metaph…”

“There's a certain amount of ambiguity in my background, what with intermarriage…”