Ideas from 'On Motion' by Gottfried Leibniz [1677], by Theme Structure

[found in 'Leibniz Akademie Edition' by Leibniz,Gottfried (ed/tr [Berlin Akademie]) [Berline Akademie 1999,]].

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27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity
Motion is not absolute, but consists in relation
                        Full Idea: In reality motion is not something absolute, but consists in relation.
                        From: Gottfried Leibniz (On Motion [1677], A6.4.1968), quoted by Daniel Garber - Leibniz:Body,Substance,Monad 3
                        A reaction: It is often thought that motion being relative was invented by Einstein, but Leibniz wholeheartedly embraced 'Galilean relativity', and refused to even consider any absolute concept of motion. Acceleration is a bit trickier than velocity.