有一则故事说，夜晚街道上有一位挑灯行走的长者，他明明是位盲人，却偏要“白费蜡”。他自有他的道理：我挑这盏灯既能保护自己，防止别人撞上我，又能照亮别人，给大家照清道路，何乐而不为呢﹖盲人挑灯，利人又利己，在为他人提供方便的同时，也为自己带来了方便。而现实生 There is a story that one of the elderly people who walked the streets at night in the street was obviously a blind person but rather a “shy wax.” His own truth: I pick this lamp both to protect themselves, to prevent others hit me, but also to illuminate others, to clear the road for everyone, why not? Blind people light, people and self-interested, while providing convenience for others, but also brought convenience to ourselves. And real life