Ralph Waldo Emerson Quotes about Heroism
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Ralph Waldo Emerson (2013). “Delphi Complete Works of Ralph Waldo Emerson (Illustrated)”, p.1362, Delphi Classics
Ralph Waldo Emerson (1866). “The Complete Works of Ralph Waldo Emerson: Comprising His Essays, Lectures, Poems, and Orations”, p.387
Ralph Waldo Emerson (2015). “Essays”, p.39, Xist Publishing