The concept can be traced back to Epicurus (341 BCE – 270 BCE ), however most of the original sources dealing with the concept have been lost and most material today is based on Diogenes Laërtius's work Lives and Opinions of Eminent Philosophers (c. 3rd century CE ), and copies plus developments by Lucretius (c. 99 BCE – c. 55 BCE ) and Cicero (3 January 106 BCE – 7 December 43 BCE )."Epicurus", Plato.Stanford
The concept can be traced back to Epicurus (341 BC – 270 BC ), however most of the original sources dealing with the concept have been lost and most material today is based on Diogenes Laërtius's work Lives and Opinions of Eminent Philosophers (c. 3rd century AD ), and copies plus developments by Lucretius (c. 99 BC – c. 55 BC ) and Cicero (3 January 106 BC – 7 December 43 BC )."Epicurus", Plato.Stanford
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