That metre itself forms an essential part of all true poetry is a principle which not even the assertions of an Aristotle or the pronouncements of a Plato can disestablish.
Lies are essential to humanity. They are perhaps as important as the pursuit of pleasure and moreover are dictated by that pursuit.
The U.S. has strategic and economic interests in Southeast Asia that must be secured. Holding Indochina is essential to securing these interests. Therefore, we must hold Indochina.