Even a broken clock is right twice a day. [ Alan Turing ]

The three foundations of thought: Perspicuity, amplitude and justness. The three ornaments of thought: Clearness, correctness and novelty. [ Catherall ]

Until every good man is brave, we must expect to find many good women timid - too timid even to believe in the correctness of their own best promptings, when these would place them in a minority. [ George Eliot ]

Truth, in the great practical concerns of life, is so much a question of the reconciling and combining of opposites, that very few have minds sufficiently capacious and impartial to make the adjustment with an approach to correctness. [ J. S. Mill ]

The receipt to make a speaker, and an applauded one too, is short and easy. Take commonsense quantum sufficit (in sufficient quantity); add a little application to the rules and orders of the House of Commons, throw obvious thoughts in a new light, and make up the whole with a large quantity of purity, correctness and elegancy of style. Take it for granted that by far the greatest part of mankind neither analyze nor search to the bottom; they are incapable of penetrating deeper than the surface. [ Chesterfield ]