Theory: The primary factor that sets people apart from each other, that determines who the winner is and who the loser is in life, is self control.
The ability to perform an action that you do not want to do or not do something you desire very much, is vital to success.
Can you make yourself work 18 hours a day at something not enjoyable? Say hello to fabulous wealth, Mr. Hedge Fund Manager.
Can you tolerate incredible amounts of physical pain for long periods? Welcome to professional sports.
Can you force yourself to concentrate on minuteia for a lifetime? The Nobel Prize is just around the corner.