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In page Self-Reliance:

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From 1836 into 1837, Emerson presented a series of lectures on the philosophy of history at Boston's Masonic Temple. These lectures were never published separately, but many of his thoughts in these were later used in "Self-Reliance" and several other essays.[3] Later lectures – such as "The American Scholar" and the Divinity School Address[4] – by Emerson led to public censure of his radical views, the staunch defense of individualism in "Self-Reliance" being a possible reaction to that censure.[5]