At all turns, a man who will do faithfully, needs to believe firmly. If he have to ask at every turn the world's suffrage; if he cannot dispense with the world's suffrage, and make his own suffrage serve, he is a poor eye-servant; the work committed to him will be misdone. Every such man is a daily contributor to the inevitable downfall.
 Thomas Carlyle, On Heroes, Hero-Worship, and The Heroic in History (1841). copy citation

Context

“If we add now the melancholy fact, that when Belief waxes uncertain, Practice too becomes unsound, and errors, injustices and miseries everywhere more and more prevail, we shall see material enough for revolution. At all turns, a man who will do faithfully, needs to believe firmly. If he have to ask at every turn the world's suffrage; if he cannot dispense with the world's suffrage, and make his own suffrage serve, he is a poor eye-servant; the work committed to him will be misdone. Every such man is a daily contributor to the inevitable downfall. Whatsoever work he does, dishonestly, with an eye to the outward look of it, is a new offence, parent of new misery to somebody or other. Offences accumulate till they become insupportable; and are then violently burst through, cleared off as by explosion.” source