waynedrake:

Montenegro, 1916. She saved a family of refugees whose daughter would discover the technique for the early detection of diabetes. This one… her grandson would save 317 people from the Khmer Rouge in Cambodia. This man prevented an accidental nuclear exchange in 1978 and likely saved humanity as a result. The famous and the unknown names. She saves a life, two, three generations later, we reap the benefits. […] This is only what I’ve found going back the last 150 years or so. When you think about how old you are, the good you’ve done for humanity becomes exponential.