Image via Wikipedia1) Use the language of common speech, but use it exactly
2) Create new rhythms for new moods
3) Allow complete freedom in a subject
4) Present an image, but avoid vagueness
5) Produce poetry that is hard and clear
6) Concentration is the essence of poetry
Picture - Image of a flea from Robert Hooke's Micrographia (1665), a Royal Society work. The Zementa Content widget seems to have suffered a brain freeze for this article, still, it's a nice drawing of a bug.