Forests, lakes, and rivers, clouds and winds, stars and flowers, stupendous glaciers and crystal snowflakes – every form of animate or inanimate existence, leaves its impress upon the soul of man. – Orison Swett Marden

Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous. – Leonardo da Vinci