Do not Explain overmuch. Most men do not esteem what they understand, and venerate what they do not see. To be valued things should cost dear: what is not understood becomes overrated. You have to appear wiser and more prudent than herequires with whom you deal, if you desire to give him a high opinion of you: yet in this there should be moderation and no excess. And though with sensible people common sense holds its own, with most men a little elaboration is necessary. Give them no time for blame: occupy them with understanding your drift. Many praise a thing without being able to tell why, if asked. The reason is that they venerate the unknown as a mystery, and praise it because they hear it praised.