Thomas Babington Macaulay Quote

Propriety of thought and propriety of diction are commonly found together. Obscurity and affectation are the two greatest faults of style. Obscurity of expression generally springs from confusion of ideas; and the same wish to dazzle, at any cost, which produces affectation in the manner of a writer, is likely to produce sophistry in his reasonings.

Critical and Miscellaneous Essays (ed. 1840)