[IDEM libro singulari de secundis tabulis. ] §28.5.57.prPotest quis ita heredem instituere: 'si intra annum septuagesimum decessero, ille mihi heres esto': non enim pro parte testatus intellegi debet, sed sub condicione instituisse.
[THE SAME, On Duplicate Wills, Single Book] Anyone can institute an heir in this manner: 'If I die within my seventieth year, let that person be my heir.' For he should not be understood to have made a will for only a part, but rather to have instituted him under a condition.