"Self-interest is the most ingenious and persuasive of all the agents that deceive our consciences, while by means of it our unhappy and stubborn prejudices operate in their greatest force."

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Habit is the enormous flywheel of society, its most precious conservative agent. There is no more miserable human being than one in whom nothing is habitual but indecision. Full half the time of such a man goes to the deciding, or regretting, of matters which ought to be so ingrained in him as practically not to exist for his consciousness at all.

— William James