Reasoning all rests ultimately on intuitive first principles. All men 'intue' something: but a man of genius intues far beyond other men. His followers take his word an trust. To the world at large, the soundness of his judgement is vindicated by experience: scholars and critics arrive at some appreciation of it by a slow process of reasoning. Instances are found in Newton's Principia ia and the campaigns of Marlbro.
Of God and His Creatures: 1.57