Patton argues that physical exhaustion can make people assess circumstances more negatively than they otherwise would. In the episode he describes, experienced officers had been subjected to sustained pressure and were considering withdrawal. He believed their pessimism reflected not only the military situation but also the effects of severe fatigue on their judgement.

The remark highlights the connection between physical condition and decision-making. Exhaustion can narrow attention, reduce confidence and make risks appear more prominent, especially in demanding circumstances where information is incomplete and consequences are serious. Patton therefore treated pessimistic assessments from exhausted officers with caution rather than assuming that they provided a fully balanced picture. The broader lesson is that important judgements should take account of the condition in which they are made. When possible, assessments formed under extreme fatigue may benefit from fresh evidence, another perspective or reconsideration after rest.

Full quotation

“Next day the attack by the 6th Armored and the 35th Infantry was renewed with complete success, and over eight hundred dead Germans were counted in one field. The officers concerned were all of the highest caliber, but were all very fatigued, and, as I have stated before, fatigue produces pessimism.”