The merit of painting lies in the exactness of reproduction. Painting is a science and all sciences are based on mathematics. No human inquiry can be a science unless it pursues its path through mathematical exposition and demonstration.
Leonardo da VinciThe variety of colour in objects cannot be discerned at a great distance, excepting in those parts which are directly lighted up by the solar rays.
Leonardo da VinciNo human investigation can be called real science if it cannot be demonstrated mathematically.
Leonardo da Vinci