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The principle of asceticism never was, nor ever can be, consistently pursued by any living creature. Let but one tenth part of the inhabitants of the earth pursue it consistently, and in a day's time they will have turned it into a Hell.

Jeremy Bentham (1996). “The Collected Works of Jeremy Bentham: An Introduction to the Principles of Morals and Legislation”, p.21, Clarendon Press
The principle of asceticism never was, nor ever can be, consistently pursued by any living creature. Let but one tenth part of the inhabitants of the earth pursue it consistently, and in a day's time they will have