The general who wins the battle makes many calculations in his temple before the battle is fought. The general who loses makes but few calculations beforehand.
Original text (Chinese)
Original text (Chinese)
Secret operations are essential in war; upon them the army relies to make its every move.
Management of many is the same as management of few. It is a matter of organization.
Quote text and notes from Wikiquote: Sun Tzu (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.