[IDEM libro septimo ad Plautium. ] §3.5.15.prSed et cum aliquis negotia mea gerat, non multa negotia sunt, sed unus contractus, nisi si ab initio ad unum negotium accessit, ut finito eo discederet: hoc enim casu si noua uoluntate aliud quoque adgredi coeperit, alius contractus est.
[THE SAME, on Plautius, book seven] But also when someone manages my affairs, they are not several affairs, but a single contract, unless he approached a single affair from the beginning with the intention that, when it was finished, he would depart: for in this case, if he has begun to undertake another affair also with a new intention, it is another contract.