[GAIUS libro octauo ad edictum prouinciale. ] §45.1.74.prStipulationum quaedam certae sunt, quaedam incertae.
[GAIUS, On the Provincial Edict, Book 8]\n\nOf stipulations, some are certain, some are uncertain.
certum est, quod ex ipsa pronuntiatione apparet quid quale quantumque sit, ut ecce aurei decem, fundus Tusculanus, homo Stichus, tritici Africi optimi modii centum, uini Campani optimi amphorae centum.
That is certain which, from the very statement itself, is clear as to what, of what quality, and how much it is; as, for example, ten aurei, the Tusculan estate, the slave Stichus, a hundred modii of the best African wheat, a hundred amphorae of the best Campanian wine.