"This huge and terrible industry [the slave trade] was blessed by all churches and for a long time aroused absolutely no religious protest. . . . In the eighteenth century, a few dissenting Mennonites and Quakers in America began to call for abolition, as did some freethinkers like Thomas Paine."

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I have reached the conviction that the abolition of the death penalty is desirable. Reasons: 1) Irreparability in the event of an error of justice, 2) Detrimental moral influence of the execution procedure on those who, whether directly or indirectly, have to do with the procedure.

— Albert Einstein