De Plantatione

Others again have asserted, that to be overcome with wine is appropriate even to a virtuous man, but that to behave foolishly is inconsistent with his character. For that the wisdom which is in him is sufficient to resist those things which attempt to do him injury, and to destroy the innovations which they seek to produce in the soul, and that wisdom is endued with a power capable of extinguishing the passions, whether they be fanned by the impetuous gale of furious love, or kindled by abundant and heating wine, and that owing to this power it will always be superior to them. Since also of those who dive beneath a deep river or under the sea, some are destroyed from being ignorant of the art of swimming, but others who are possessed of this knowledge are very speedily saved; and, indeed, a great quantity of wine, inundating the soul like a torrent, sometimes weighs it down and precipitates it to the lowest depth of ignorance, but at other times is unable to part it, because it is supported and borne aloft by saving instruction.

Those again who have not sufficiently observed the greatness of this excess with respect to passion in the wise man, have pressed him down, when he was applying himself to the study of sublime things, from heaven to earth, as those men do who are seeking to catch birds, in order to involve him in disasters similar to their own; but others, seeing the great height of his virtue, have said that a wise man, if he indulges in wine beyond the bounds of moderation, will by all means cease to be master of himself, and will go astray, and will not only let his hands droop out of weakness, like those athletes do who are defeated, but will also droop his neck and his head, and stumble, and fall down, coming to the ground with his whole body.