In the greatest power there is the least liberty.
In negotiis contrahendis alia causa habita est furiosorum, alia eorum qui fari possunt, quamvis actum rei intelligerent; nam furiosus nullum negotium contrahere potest; pupillus omnia, tutore, auctore, agere potest.
In contracting business, the cause of madmen is to be considered one thing, and the cause of those who can speak another, in so far as they understand the transaction of a matter; for a madman can contract no business; a pupil can do all things with the authority of his guardian.
In novo casu novum remedium apponendum est.
In an extraordinary case, an extraordinary remedy must be applied.
In obscuris, inspici solere quod verisimile esset, aut quod plerumque fieri solet.
In obscure cases, what is probable is wont to be looked to; or what for the most part is used to be done.
In odium spoliatoris omnia præsumuntur.
All things are presumed in hatred of a defrauder.
In omnibus causis pro facto accipitur id, in quo per alium moræ sit, quo minus fiat.