You're absolutely correct with everything you've said (although postdocs do get benefits here). I do think I have a problem with the prestige aspect. I am alway

You're absolutely correct with everything you've said (although postdocs do get benefits here). I do think I have a problem with the prestige aspect. I am always wavering between two different feelings: "I need to make the biggest difference I can," and, "My happiness should not depend on my work's importance." These feelings aren't mutually exclusive, but a lot of the time, I either feel one way, or I feel the other. It'd be more comfortable to just choose one and stick with it. Was it a tough call when you decided to go to graduate school? It seems like it's always such a huge decision, no matter your circumstances. Also, how would you have been more selective in projects? Did you get stuck on a particular project? Any tips on how to maneuver your way toward the good projects?