Now, what we need is clever people that are not afraid of thinking deep, of getting their hands dirty, and of tackling great problems. If you feel like giving it a try and you meet some headwind howling that "everything is understood", that "understanding is not our job", or that it is "impossible" or "too diffcult", if some colleagues tell you that "physics does not deal with whys", that "understanding is just being Newtonian" or that "Thou shall not philosophize", if they throw invented norms to you, or if weaknesses and career prospects enter the discussion when the debate gets all heated up... you can always answer "Shut up and let me think!" —and get back to work.
"Shut up and let me think! Or why you should work on the foundations of quantum mechanics as much as you please" (2013)