"the limits of potential accomplishment are defined by one's sense of the possible."
the guy who said that had done things beyond anybody's wildest dream. one thing he accomplished was he achieved more than 100% return on investment in a year with a one billion US dollar fund he managed.
an annual investment return of several hundred percent with a small capital is relatively easy in a trending market. i did that a few times myself. at first i thought it was luck. but after repeating it several times, i knew it wasn't just luck. nobody's that lucky. i must have done something right. but a 100% return with a one billion US dollar capital is really really something.
one'd be surprised how seemingly impossible things could be done with relative ease when things are in sync, among them discipline, confidence, and the courage to dream big.