“That’s how everything is done with us, all topsy-turvy!” said the Russian officers and generals after the Tarútino battle, letting it be understood that some fool there is doing things all wrong but that we ourselves should not have done so, just as people speak today. But people who talk like that either do not know what they are talking about or deliberately deceive themselves. No battle⁠—Tarútino, Borodinó, or Austerlitz⁠—takes place as those who planned it anticipated. That is an essential condition.

A countless number of free forces (for nowhere is man freer than during a battle, where it is a question of life and death) influence the course taken by the fight, and that course never can be known in advance and never coincides with the direction of any one force.

If many simultaneously and variously directed forces act on a given body, the direction of its motion cannot coincide with any one of those forces, but will always be a mean⁠—what in mechanics is represented by the diagonal of a parallelogram of forces.