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Causes of belief in God.--The origin of abstract ideas.--The origin of the idea of justice.--The origin of the idea of good</div>
<bdi><a href="https://en.wikipedia.org/wiki/en:Paul_Lafargue" class="extiw" title="w:en:Paul Lafargue"><span title="writer, journalist, literary critic and revolutionary; also known for being Karl Marx's son-in-law (1842-1911)">Paul Lafargue</span></a>
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