Kindness
"Kindness is the essence of greatness."
Joseph B. Wirthlin

This statement is trying to tell you is that when ever you are doing something kind it means you have greatness. Like if you see someone on the street and they ask you for money to buy food and you give it to them it shows that you have greatness in you. Its also generous to do that. And, its like helping someone with there groceries because they are very old and you help them with there things its a very kind thing to do and it shows your greatness.