In consuetudinibus non diuturnitas temporis sed soliditas rationis est consideranda:
In customs, not length of time but the soundness of the reason should be considered.
In contractibus, benigna; in testamentis, benignior; in restitutionibus, benignissima interpretatio facienda est:
In contracts, the interpretation or construction should be liberal; in wills, more liberal; in restitutions, most liberal.
In contractibus, rei veritas potius quam scriptura perspici debet:
In contracts, the truth of the matter ought to be regarded rather than the writing.
In contractibus tacite insunt quae sunt moris et consuetudinis:
In contracts, matters of custom and usage are tacitly implied.
