The author that argued about equality as illustrated is A. Condorcet.
Marie Jean Condorcet popularly known as Nicolas de Condorcet was a French philosopher. His ideas for a liberal economy, constitutional government, equal rights, etc embodied the ideals of the Age of Enlightenment.
He also argued that men and women could achieve perfection if they did not have to follow rules created by monarchs and religious leaders. He advocated religious toleration and economic freedom.
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