God who gave Animals self motion beyond our understanding is without doubt able to implant other principles of motion in bodies [which] we may understand as little. Some would readily grant this may be a Spiritual one; yet a mechanical one might be showne, did not I think it better to pass it by.
Nature is pleased with simplicity. And nature is no dummy
To explain all nature is too difficult a task for any one man or even for any one age
The changing of bodies into light, and light into bodies, is very conformable to the course of Nature, which seems delighted with transmutations.