As I suggested in the article about the solution of the Hydrogen atom using the SO(4) symmetry, one of the reasons why almost no people properly learn the “foundations of quantum mechanics” is the textbooks’ and teachers’ excessive focus on the Schrödinger picture (and the wave functions) and their disrespect for the Heisenberg picture (and the operators) even though operators – the observables – is what quantum mechanics is all about.
— Celebrating the Heisenberg picture
— Lubos Motl
2013.02.17 Sunday ACHK