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There is never vulgarity in a whole truth, however commonplace. It may be unimportant or painful. It cannot be vulgar. Vulgarity is only in concealment of truth, or in affectation.

John Ruskin, John D. Rosenberg (1964). “The Genius of John Ruskin: Selections from His Writings”, p.59, University of Virginia Press
There is never vulgarity in a whole truth, however commonplace. It may be unimportant or painful. It cannot be vulgar. Vulgarity is only in concealment of truth, or in affectation.