"Born to destroy those beings which are subordinate, we should exhaust Nature if she were not exhaustless, and by a fertility superior to our depredations, renovates the destruction we continually make. But it is so ordained that death should contribute to life, and that reproduction should spring from destruction. However groat, therefore, may be the waste made by man and carnivorous animals, the total quantity of living matter is never diminished, and if they hasten deaths they are also the cause of new births being produced."