The Decline and Fall of the Roman Empire · ¶198

But the counsels of princes are more frequently influenced by views of temporal advantage, than by considerations of abstract and speculative truth. The partial and increasing favor of Constantine may naturally be referred to the esteem which he entertained for the moral character of the Christians; and to a persuasion, that the propagation of the gospel would inculcate the practice of private and public virtue. Whatever latitude an absolute monarch may assume in his own conduct, whatever indulgence he may claim for his own passions, it is undoubtedly his interest that all his subjects should respect the natural and civil obligations of society. But the operation of the wisest laws is imperfect and precarious. They seldom inspire virtue, they cannot always restrain vice. Their power is insufficient to prohibit all that they condemn, nor can they always punish the actions which they…

Edward Gibbon · Project Gutenberg #732 (Milman edition) — public domain
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