Christopher really likes war weapons. Dad bought a sword and a shield to his knight. Armed up to the teeth, Christopher is ready to face the wildest enemies who will be bound to appear on his road.
Dad shows Christopher how to brandish this sword to impress the opponent, by calling upon the power of perpendicular rights. Which enemy can resist this incantation ?
Dad makes Christopher‘s finger slide on the sword blade then, perpendicularly, on its guard. Christopher draws the shape of a cross.
To see if two rights are perpendicular, it is enough to put the sword at their junction. At home, Christopher found many perpendicular rights : bathroom wall tiles, table corners and even the outline of piano keys.
To become a great knight and bring down his enemies, it is necessary to begin by acquiring the wisdom of the ancients. These are the bases of the art of war apprenticeship.
