Thus the sum of things is ever being reviewed, and mortals dependent one upon another. Some nations increase, others diminish, and in a short space the generations of living creatures are changed and like runners pass on the torch of life.
LucretiusPleasant it is, when over a great sea the winds trouble the waters, to gaze from shore upon another's great tribulation: not because any man's troubles are a delectable joy, but because to perceive from what ills you are free yourself is pleasant.
Lucretius