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"I fly from pleasure," said the prince, "because pleasure has ceased to please; I am lonely because I am miserable, and am unwilling to cloud with my presence the happiness of others."

Samuel Johnson, Arthur Murphy (1837). “The Works of Samuel Johnson, LL. D.: With an Essay on His Life and Genius /c by Arthur Murphy, Esq”, p.458
I fly from pleasure, said the prince, because pleasure has ceased to please; I am lonely because I am miserable, and am unwilling to cloud with my presence the happiness of others.