Sadly no one wants the truth, so folks like Jobs and Cuban have to layer it with bromides. Truth is they're both giving the exact same advice, it's just that the honest version is deeply unpopular, because it implies that there is no secret sauce.

The advice is: Work very hard on something, and you too might get lucky.

Jobs' version is just slightly modified: Work very hard on something (you care about), and you too might get lucky.