Fairy tales are more than true: not because they tell us that dragons exist, but because they tell us that dragons can be beaten.
树木有根则繁茂,根腐则树枯萎;鱼有水才能活,水干涸了鱼则必死;灯有油才光亮,油尽则灯灭。人有真精神,保护则长寿,戕害则必死。