There is no Sixth Commandment in art. The poet is entitled to lay his hands on whatever material he finds necessary for his work.
Photography is a witness against the mistaken opinion that art is an imitation of nature.
Nothing is sillier than this charge of plagiarism. There is no sixth commandment in art. The poet dare help himself wherever he lists, wherever he finds material suited to his work. He may even appropriate entire columns with their carved capitals, if the temple he thus supports be a beautiful one. Goethe understood this very well, and so did Shakespeare before him.
Reason exercises merely the function of preserving order, is, so to say, the police in the region of art. In life it is mostly a cold arithmetician summing up our follies.