derivative work

random quotes ... to amuse, inspire, enrage:
  The universe is so aptly fitted to our organization, that the eye wanders and reposes at the same time. On every side there is something to soothe and refresh this sense. Look up at the tree-tops and see how finely Nature finishes off her work there. See how the pines spire without end higher and higher, and make a graceful fringe to the earth. And who shall count the finer cobwebs that soar and float away from their utmost tops, and the myriad insects that dodge between them. Leaves are of more various forms than the alphabets of all languages put together; of the oaks alone there are hardly two alike, and each expresses its own character.