Whenever you do any one thing intensely over a period of time you have to give up other lives you could be living. You have to have a real single-minded kind of tunnel vision if you want to get anything significant accomplished. Especially if the desire is not to be a businessman, but to be a creative person.
I used to walk into a party and scan the room for attractive women. Now I look for women to hold my baby so I can eat potato salad sitting down.