"Mass tells space how to curve, and space tells mass how to move" is from here: https://einstein.stanford.edu/SPACETIME/spacetime2.html The other quote, no longer available anywhere, seems to have moved down the road a bit since the last time I visited. Interesting. OK. Here: https://www.researchgate.net/post/S...ass_should_be_equal_to_the_gravitational_mass A whole conversation in which every respondent agrees with what I said about the principle of equivalence and Higgs. NOT just one. It just goes on for miles and miles and miles. Compared to these august and knowledgable physics folks at research gate, Sciforum folks are all sounding like they are from backwoods Pixly (near Bugtussel), edjumucated back thar too!