The reason of the law is the soul of the law.

Explanation

Every law has a reason, and that reason is its animating principle; when the reason of a rule ceases, the rule itself ceases — for a law without reason is a body without a soul.

Where this applies

• The reason behind a law is its animating principle — when the reason dies, the law dies.
• A rule that has lost its reason has lost its soul.
• Every law exists for a reason, and without that reason the law ceases.