And it keeps accumulating -- you get to an advanced class, all of a sudden you hit a wall and say, "I'm not meant to be a cancer researcher; not meant to be a physicist; not meant to be a mathematician."
A to se nastavlja prikupljati -- dospijete do napredne lekcije, odjednom lupite u zid i kažete: "Nije mi suđeno istraživati rak; nije mi suđeno biti fizičar; nije mi suđeno biti matematičar."