The March of Folly: From Troy to Vietnam

by Barbara W. Tuchman

In its first stage, mental standstill fixes the principles and boundaries governing a political problem. In the second stage, when dissonances and failing function begin to appear, the initial principles rigidify. This is the period when, if wisdom were operative, re-examination and re-thinking and a change of course are possible, but they are rare as rubies in a backyard. Rigidifying leads to increase of investment and the need to protect egos; policy founded upon error multiplies, never retreats. The greater the investment and the more involved in it the sponsor’s ego, the more unacceptable is disengagement. In the third stage, pursuit of failure enlarges the damages until it causes the fall of Troy, the defection from the Papacy, the loss of a trans-Atlantic empire, the classic humiliation in Vietnam.