Book 8
8.9
In former times it was their custom also to eat but once in the day, so that they might devote the whole day to business and hard work. Now, to be sure, the custom of eating but once a day still prevails, but they begin to eat at the hour when those who breakfast earliest begin their morning meal, and they keep on eating and drinking until the hour when those who stay up latest go to bed.
8.10
They had also the custom of not bringing pots into their banquets, evidently because they thought that if one did not drink to excess, both mind and body would be less uncertain. So even now the custom of not bringing in the pots still obtains, but they drink so much that, instead of carrying anything in, they are themselves carried out when they are no longer able to stand straight enough to walk out.
8.11
Again, this also was a native custom of theirs, neither to eat nor drink while on a march, nor yet to be seen doing any of the necessary consequences of eating or drinking. Even yet that same abstinence prevails, but they make their journeys so short that no one would be surprised at their ability to resist those calls of nature.