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I offer some historical comments about the origins of Feynman's path integralapproach, as an alternative approach to standard quantum mechanics. Looking atthe interaction between Einstein and Feynman, which was mediated by Feynman'sthesis supervisor John Wheeler, it is argued that, contrary to what one mightexpect, the significance of the interaction between Einstein and Feynmanpertained to a critique of classical field theory, rather than to a directcritique of quantum mechanics itself. Nevertheless, the critical perspective onclassical field theory became a motivation and point of departure for Feynman'sspace-time approach to non-relativistic quantum mechanics.

Remarks on the Origin of Path Integration: Einstein and Feynman