[GAIUS libro secundo cottidianarum rerum. ] §17.2.72.prSocius socio etiam culpae nomine tenetur, id est desidiae atque neglegentiae.
[GAIUS, in the second book of Everyday Matters.] A partner is liable to his partner also on the ground of fault, that is, of slackness and negligence.
culpa autem non ad exactissimam diligentiam dirigenda est: sufficit etenim talem diligentiam communibus rebus adhibere, qualem suis rebus adhibere solet, quia qui parum diligentem sibi socium adquirit, de se queri debet.
However, fault is not to be measured by the standard of the most exact diligence; for it is sufficient to apply such diligence to the common property as one is accustomed to apply to one's own affairs, because he who acquires a partner of insufficient diligence for himself has only himself to complain of.