We should not be impressed when our leaders say firmly, "History teaches us" or "History will show that we were right."
They can oversimplify and force inexact comparisons just as much as any of us can. Even the clever and the powerful (and the two are not necessarily the same) go confidently off down the wrong paths. It is useful, too, to be reminded, as a citizen, that those in positions of authority do not always know better.

Autore: Margaret MacMillan