Juice for maintaining self confidence

I once read in a success magazine a quote froma renowned self improvement expert. I don't remember his name, but when asked why he kept setting goals and breaking records, he aswered " I don't know my mother used to tell me, son, you were born a 10, and you will die a 10 don't ever let anyone make you feel less than a 10 because you're not."
Think about it. Use it