God could cause us considerable embarrassment by revealing all the secrets of nature to us: we should not know what to do for sheer apathy and boredom.
Johann Wolfgang von GoetheIt is the color closest to light. In its utmost purity it always implies the nature of brightness and has a cheerful, serene, gently stimulating character. Hence, experience teaches us that yellow makes a thoroughly warm and comforting impression.
Johann Wolfgang von Goethe