Which Enlightenment thinker is known for his critique of established religious practices?

Voltaire is recognized for his critical stance on established religious practices, advocating for freedom of thought and expression. He was a fierce proponent of civil liberties, emphasizing the importance of separating religion from government and intellectual discourse. His writings, particularly his critiques of organized religion, illustrated his belief that dogmatic beliefs could lead to oppression and conflict. Voltaire's famous saying, “Écrasez l'infâme” (crush the infamous thing), reflects his disdain for the abuses and superstitions perpetuated by institutionalized religion. This commitment to challenging ecclesiastical authority and promoting religious tolerance made him a pivotal figure in the Enlightenment movement, influencing both secular and religious thought.