Personally, I think that the criticism of physics being driven too much by mathematics is exactly wrong. The most sensible approach to quantum gravity yet came

Personally, I think that the criticism of physics being driven too much by mathematics is exactly wrong. The most sensible approach to quantum gravity yet came out of Wheeler's group. It's a really obvious approach: I came up with the basic idea independently, then looked up Gravitation to see if it was technically possible, and learnt that the authors thought of that 50 years before I did. But it was abandoned, because no one could do the maths. So I think we're waiting for another Laplace and Euler, to solve the Wheeler-de Witt equation.