I answer that, Just as man needs bodily rest for the body's refreshment, because he cannot always be at work, since his power is finite and equal to a certain fixed amount of labor, so too is it with his soul, whose power is also finite and equal to a fixed amount of work. Consequently when he goes beyond his measure in a certain work, he is oppressed and becomes weary, and all the more since when the soul works, the body is at work likewise, in so far as the intellective soul employs forces that operate through bodily organs.

Some, after building up speed with a run, facing sideways and their feet placed apart, slide along for a long distance. Others make seats for themselves out of ice-slabs almost as large as millstones, and are dragged along by several others who hold their hands and run in front.

young men not yet invested with knighthood. Each is consumed by a hope for a victory. The fierce horses whinny, "their limbs tremble; they champ the bit; impatient of delay they cannot stand still"[see notes]. When finally "the hoof of trampling steed careers along", the young horsemen