To Whom Must We Submit Our Spirit and Freedom?

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The natural law is written and engraved on the soul of each and every man, because it is human reason ordaining him to do good and forbidding him to sin…But this command of human reason would not have the force of law if it were not the voice and interpreter of a higher reason to which our spirit and our freedom must be submitted.

 Pope Leo XIII – Libertas praestantissimus