There’s an old story about two friends travelling through the desert and having an argument. One of them got angry and slapped the other in the face. The second man said nothing, but wrote in the sand, ‘Today my best friend slapped me in the face.’ They walked on to an oasis, where they decided to take a bath. The one who had been slapped got caught in weeds and would have drowned had his friend not jumped in to save him. After he had recovered, he wrote on a stone, “Today my best friend saved my life.” His friend asked, “After I hurt you, you wrote in the sand and now, you write on a stone, why?” He replied ‘The record of a hurt should be written in sand where the wind of forgiveness can blow it away. But the record of a good deed should be engraved in stone where it will never be forgotten.’