What pleases the prince has the force of law.
Quod principi placuit legis habet vigorem.
Notes from Wikiquote
Digesta, 1, 4, 1
Variants
"What pleases the emperor becomes enforceable law."
The child is a part of the woman, or of her entrails, before it is born.
Justice is the constant and perpetual will to render to every man his due.
Quote text and notes from Wikiquote: Ulpian (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.