What any one grants to one, he appears to grant; and that without which the thing itself could not be.
Cuilibet in arte sua credendum.
We ought to believe every one in his own profession.
Cui jurisdictio data est, ea quoque concessa esse videntur, sine, quibus jurisdictio explicari non potuit.
To whom jurisdiction has been given, those things also seem to be granted, without which jurisdiction could not be explained.
Cui plus licet quam par est plus vult quam licet.
He to whom more is allowed than is proper, wishes more than is allowed.
Cujus est commodum, ejus debet esse periculum.
He should have the risk, who has the advantage.
Cujus est dare, ejus est disponere.