Glaser's discussion of how professional success (defined as doing something well, and then becoming known for that thing and getting requests to do more of it) made me think of Carol Dweck's work on Mindsets - where she shows how getting praised for "being good" at something (as opposed to being recognized for working hard at something) can lead people very quickly to avoid risk, for fear of being exposed as not knowing how to do a particular thing.
It's also important to give young people opportunities to work on problems that DON'T have right answers. "Failure" in these cases is not about not getting the right answer (however you get to it), but about exploration and risk and testing and feedback and flexibility and humility and persistence.
Here's a related TED talk from Sir Ken Robinson about how schools kill creativity, pretty systematically, and pretty ruthlessly. He combines humor, deep research and some moving stories to make the point that schools can be places that instead nurture creativity by connecting to the passions and interests that each student brings: http://www.ted.com/talks/ken_robinson_says_schools_kill_creativity.html