That which is founded in natural justice, in honesty and right, and which arises ex aequo et bono. It corresponds precisely with the definition of justice or natural law, which is a constant and perpetual. will to give to every man what is his. This kind of equity embraces so wide a range, that human tribunals have never attempted to enforce it. Every code of laws has left many matters of natural justice or equity wholly unprovided for, from the difficulty of framing general rules to meet them, from the almost impossibility of enforcing them, and from the doubtful nature of the policy of attempting to give a legal sanction to duties of imperfect obligation, such as charity, gratitude, or kindness.