 Arguably, Leibniz’s views concerning space and motion do not have a completely linear logic, starting from some logically sufficient basic premises, but instead form a collection of mutually supporting doctrines. If one starts questioning why Leibniz held certain views – concerning the ideality of space, for instance – one is apt to be led in a circle. Still, exposition requires starting somewhere, and Leibniz’s argument for the ideality of space in the Correspondence with Clarke is a good place to begin. But bear in mind the caveats made here – this argument was made later than a number of other relevant writings, and its logical relation to Leibniz’s views on motion is complex.