The sinner who turns saint undergoes no more drastic transformation than the lecher who turns miser

From The Passionate State of Mind by Eric Hoffer.

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The dislocation involved in switching from one passion to another — even its very opposite — is less than one would expect. There is a basic similarity in the make-up of all passionate minds. The sinner who turns saint undergoes no more drastic transformation than the lecher who turns miser.