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Socrates, Plato, Aristotle (1967). “Wit and Wisdom of Socrates, Plato, Aristotle: Being a Treasury of Thousands of Glorious, Inspiring and Imperishable Thoughts, Views and Observations of the Three Great Greek Philosophers, Classified Under about Four Hundred Subjects for Comparative Study”
Henry Wadsworth Longfellow (1859). “The Poetical Works of Henry Wadsworth Longfellow: A New Complete Edition, Including Miles Standish and Other Poems”, p.620