Principles Of Human Knowledge - pg. 143

The best key for the aforesaid analogy, or natural science, will be easily acknowledged to be a certain celebrated treatise of mechanics: in the entrance of which justly admired treatise, time, space and motion, are distinguished into absolute and relative, true and apparent, mathematical and vulgar : which distinction, as it is at large explained by the author, doth suppose those quantities to have an existence without the mind : and that they are ordinarily conceived with relation to sensible things, to which nevertheless in their own nature, they bear no relation at all.