The Art of Persuasion

I don't expect to see Government Executive run an article like this, 
discussing the philosopher Pascal.  He wrote this, as quoted in the article:

"When we wish to correct with advantage, and to show another that he errs, we must notice from what side he views the matter, for on that side it is usually true, and admit that truth to him, but reveal to him the side on which it is false. He is satisfied with that, for he sees that he was not mistaken, and that he only failed to see all sides. Now, no one is offended at not seeing everything; but one does not like to be mistaken, and that perhaps arises from the fact that man naturally cannot see everything, and that naturally he cannot err in the side he looks at, since the perceptions of our senses are always true.

Pascal added:

People are generally better persuaded by the reasons which they have themselves discovered than by those which have come into the mind of others."