And part of the soil is called to wash away In storms and streams shave close and gnaw the rocks. Besides, whatever the earth feeds and grows Is restored to earth. And since she surely is The womb of all things and their common grave, Earth must dwindle, you see and take on growth again.
LucretiusSome species increase, others diminish, and in a short space the generations of living creatures are changed and, like runners, pass on the torch of life.
LucretiusForbear to spew out reason from your mind, but rather ponder everything with keen judgment; and if it seems true, own yourself vanquished, but, if it is false, gird up your loins to fight.
Lucretius