Authors:

In a battle, as in a siege, the art consists in concentrating very heavy fire on a particular point. The line of battle once established, the one who has the ability to concentrate an unlooked for mass of artillery suddenly and unexpectedly on one of these points is sure to carry the day.

"Napoleon : In His Own Words" edited by Jules Bertaut, translated by Herbert Edward Law and Charles Lincoln Rhodes, (Ch. VII), 1916.
In a battle, as in a siege, the art consists in concentrating very heavy fire on a particular point. The line of battle once established, the one who has the ability to concentrate an unlooked for mass of artillery