[PAULUS libro secundo ad Sabinum. ] §50.17.5.prIn negotiis contrahendis alia causa habita est furiosorum, alia eorum qui fari possunt, quamuis actum rei non intellegerent: nam furiosus nullum negotium contrahere potest, pupillus omnia tutore auctore agere potest.
[PAULUS, in his second book on Sabinus.] In contracting business, one condition has been held to apply to the insane, and another to those who are able to speak, even though they may not understand what is being done: for an insane person can contract no business, whereas a ward can do all things with the authority of his tutor.