A lot of entrepreneurs onstage have been bragging about not sleeping, telling their audiences about their 16-hour days, and making it sound like hustle-at-all-costs is the way ahead. Rest be damned, they say — there’s an endless amount of work to do.
Being tired isn’t a badge of honor
Jason Fried

Its sad I’ve heard people teach this as hustle to others. I see it as more of a success killer or a sure fire way of burning out quick. Hustle is great a smart hustle is even better.