So what is the percentage contribution of internal versus external? Is it 100 % in zero? So my happiness involves finding the perfect job? Or is it 50, 50, write? or is it zero, 100? What is it? so le may put the question to all another way. Can you if i take a fixed job that does not change at all? Is it possible that i can do something internally that will increase my enjoyment of the work or decrease my enjoyment ofthe work? "Is that answer, i think, is absolutely yes"