A Painter who has no Doubts in his Studies, makes but a small Progress in his Art; It being an infallible Sign, where all things appear easy, that the Workman is insufficient, and the Work above his Pitch. But when once a Painter has got a just Sense of the whole Difficulties of his Work, every new Reflection he makes, will give him new Strength to surmount them; insomuch that if he perseveres in it, every Day will contribute something towards his Improvement and Perfection.