Advice from a billionaire!

the most profound piece of business advice I was ever given was from a family friend who is a billionaire and I said to him you have such a good business I'm thinking about going into your industry he looked at me with a face of a little bit of anger and he said to me everybody thinks that my industry is so good I'm in the most difficult industry that exists on planet Earth today he said everybody thinks that I've have such a good business little do they know how hard I work at it everybody thinks the grass is greener on the other side but maybe the other guy is taking better care of his grass