Without the lamp of the history of tactics - darkness. No battle can be won in the study, and theory without practice is death. Every soldier should understand your maneuver. To surprise is to vanquish. Swiftness and surprise translate into numbers, on onslaught and shock decide the battle.
Speed is essential, but haste harmful.
Know how to take advantage of position. Never scorn your enemy, but study his troops, his methods of action, study his strong and weak sides. Be patient in military difficulties, do not give way to dejection from failure. Better to go to danger than to wait it in place. Bibliography Bantysh-Kamenskiy, Dmitriy.