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

Those things that nature denied to human sight, she revealed to the eyes of the soul. – Ovid

It is not the language of painters but the language of nature which one should listen to, the feeling for the things themselves, for reality is more important than the feeling for pictures. – Vincent Van Gogh

Human judges can show mercy. But against the laws of nature, there is no appeal. – Arthur C. Clarke