Judex habere debet duos sales, salem sapientiæ, ne sit insipidus, et salem conscientiæ, ne sit diabolus.
A judge ought to have two kinds of salts—the salt of wisdom, that he may not be insipid; and the salt of conscience, that he may not be a devil.
Judex non potest esse testis in propria causa.
A judge cannot be a witness in his own cause.
Judex non potest injuriam sibi datam punire.
A judge cannot punish an injury done to himself.
Judex non reddit plus quam quod petens ipse requirit.
A judge does not give more than the petitioner himself requires.
Judicandum est legibus, non exemplis.
We must judge by the law, and not by examples.