De Agricultura

But a horseman, on the other hand, when he is about to mount, takes the bridle in his hand, and then taking hold of the mane on the horse’s neck, he leaps on; and though he appears to be carried by the horse, yet, if one must tell the truth, he in reality guides the animal that carries him, as a pilot guides a ship. For the pilot too, appearing to be carried by the ship which he is managing, does in real truth guide it, and conducts it to whatever harbour he is himself desirous to hasten.