[IULIANUS libro sexagensimo quarto digestorum. ] §4.2.18.prSi ipsa res, quae ad alium peruenit, interiit, non esse locupletiorem dicemus: sin uero in pecuniam aliamue rem conuersa sit, nihil amplius quaerendum est, quis exitus sit, sed omnimodo locuples factus uidetur, licet postea deperdat.
[JULIAN, Digest, Book LXIV.] If the thing itself which came to another has perished, we shall say that he is not enriched; but if it has been converted into money or another thing, there is no need to inquire further what the outcome was, but he is deemed to have been enriched in any event, even if he should lose it afterwards.
nam et imperator Titus Antoninus Claudius Frontino de pretiis rerum hereditariarum rescripsit ob id ipsum peti ab eo hereditatem posse, quia licet res quae in hereditate fuerant apud eum non sint, tamen pretium earum quo, locupletum eum uel saepius mutata specie faciendo, perinde obligat, ac si corpora ipsa in eadem specie mansissent.
For the Emperor Titus Antoninus also wrote in a rescript to Claudius Frontinus concerning the prices of hereditary things, that the inheritance can be claimed from him for this very reason: because, although the things which had been in the inheritance are not with him, nevertheless their price, by making him enriched (even if the form of the things has been changed very often), binds him just as if the things themselves had remained in the same form.