"Whenever you are to do a thing, though it can never be known but to yourself, ask yourself how you would act were all the world looking at you, and act accordingly."

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He that has not religion to govern his morality, is not a dram better than my mastiff-dog; so long as you stroke him, and please him, and do not pinch him, he will play with you as finely as may be, he is a very good moral mastiff; but if you hurt him, he will fly in your face, and tear out your throat.

— John Selden