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Space and time, for Newton, were solid, independent things. They have been replaced by space-time, which is not substantial but only a system of relations. Matter has had to be replaced by series of events. Force, which was the first of the Newtonian concepts to be abandoned, has been replaced by energy; and energy turns out to be indistinguishable from the pale ghost which is all that remains of matter. Cause, which was the philosophical form of what physicists called force, has also become decrepit. I will not admit that it is dead, but it has nothing like the vigour of its earlier days.
Source: Bertrand Russell : My Philosophical Development, 1959
More info.: https://russell-j.com/beginner/BR_MPD_02-020.HTM