In Judaism, there are 613 biblical commandments, and the Talmud says that the chief commandment of all is study.
I think the thing to remember, though, the next time you hear someone who is really certain that he is on the side of the angels, is that the idea of angels was created by human beings, who are famous for being frequently untrustworthy and occasional.
If the power to do hard work is not a skill, it's the best possible substitute for it.