It is our care for the helpless, our practice of lovingkindness, that brands us in the eyes of many of our opponents. 'Only look,' they say, 'look how they love one another' (they themselves being given over to mutual hatred). 'Look how they are prepared to die for one another' (they themselves being readier to kill each other). Thus had this saying become a fact, 'Hereby shall all men know that ye are My disciples, if ye have love one to another.'
Tertullian