[PAULUS libro sexagensimo octauo ad edictum. ] §42.8.4.prIn fraudem facere uideri etiam eum, qui non facit quod debet facere, intellegendum est, id est si non utatur seruitutibus:
[PAULUS, On the Edict, Book 68] It must be understood that even he who does not do what he ought to do is regarded as acting to defraud; that is, if he does not use servitudes.