It is easy in the world to live after the world’s opinion; it is easy in solitude to live after our own; but the great man is he who, in the midst of the crowd, keeps with perfect sweetness the independence of solitude.

Ralph Waldo Emerson (1803-1882) American essayist, lecturer, poet

Essay (1841), “Self-Reliance,” Essays: First Series, No. 2
    (Source)

This essay was inspired by his reading of Walter Savage Landor in 1833, with passages pulled from his lecture "Individualism," last in his course on "The Philosophy of History" (1836–1837), with other passages from the lectures "School," "Genius," and "Duty" in his course on "Human Life" (1838–1839).