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[Phys-L] Re: Energy is primary and fundamental?



|
| "The key idea is to construct a Lagrangian L such that
| Lagrange's equations are Newton's equations F = ma."
|
| This would seem to be one of my points: "we have to write it
| this way to get the answer we want."
|

It strikes me that this criticism borders on being a criticism of the
correspondence principle, so I don't find it quite so bothersome.