[IDEM libro trigensimo septimo quaestionum. ] §45.1.120.prSi ita stipulatus fuero: 'hanc summam centum aureorum dari spondes?', etsi maxime ita exaudiatur ille sermo: 'si modo centum aureorum est', non facit condicionem haec adiectio, quoniam si centum non sint, stipulatio nulla est: nec placuit instar habere condicionis sermonem, qui non ad futurum, sed ad praesens tempus refertur, etsi contrahentes rei ueritatem ignorant.
[THE SAME, book thirty-seven of Questions.] If I have stipulated thus: 'Do you promise that this sum of one hundred aurei be given?', even if that phrase is interpreted to the utmost as 'provided that it is of one hundred aurei', this addition does not create a condition, because if there are not one hundred, the stipulation is void; and it has not been accepted that a phrase which refers not to future but to present time has the character of a condition, even if the contracting parties are ignorant of the truth of the matter.