Is a desire for success different from a fear of failure? No doubt it is, but I have a hard time seeing the difference. Or seeing how someone can tell whether he is driven by a desire for success or a fear of failure. I bet it feels exactly the same.
We tend to think of an achiever as being driven by 1. a desire for success and 2. high standards. Because if his standards are low, he is considered an underachiever even if he succeeds in reaching them.
But I wonder how many times this combination is exactly what makes an underachiever as well. The high standards mean that success will come with difficulty, or that there is a risk of failure. But the desire for success, if it is coupled with a fear of failure, may immobilize someone rather than drive him forward.
It is an interesting detail that I have noticed: when I speak to underachievers, it seems that they often have higher ambitions than the achievers and overachievers.