I heard this small but thoughtful story. There was a guy who used to greet everyone in a park in the morning but there was an another guy who used to abuse him everytime. The same incident was happening daily. One day a third person asked the guy that why do you greet that person while he is always like abusing you. Why don't you abuse him too? That person answered him with a smile Why should i leave my good habits if that another guy is not ready for leaving his bad habits.