In this paper, I consider the role of exact symmetries in theories of physics, working throughout with the example of gravitation set in Newtonian spacetime. First, I spend some time setting up a means of thinking about symmetries in this context; second, I consider arguments from the seeming undetectability of absolute velocities to an anti-realism about velocities; and finally, I claim that the structure of the theory licences (and perhaps requires) us to interpret models which differ only with regards to the absolute velocities of objects as depicting the same physical state of affairs. In defending this last claim, I consider how ideas and resources from the philosophy of language may usefully be brought to bear on this topic.
Two dedications, from Socratic memorabilia (1759) -- Essay on an academic question (1760) -- Miscellaneous notes on word order in the French language (1760) -- Cloverleaf of Hellenistic letters (1762) -- Aesthetica in nuce (1762) -- The last will and testament of the Knight of the Rose-Cross (1772) -- Philological ideas and doubts (written in 1772) -- Solomon of Prussia (written in 1772) -- New apology of the letter H (1773) -- Golgotha and Sheblimini! (1784) -- Metacritique on the purism of reason (written in 1784) -- From Disrobing and transfiguration : a flying letter to Nobody, the well known (1786)