R. G. Collingwood Quote

Egregious blunder! A beginner in physics or chemistry does not know what matter is, and if he thinks he does it is the duty of his teacher to disabuse him; but he knows what physics or chemistry is; it is the stuff in this red textbook, or the stuff old So-and-So teaches, or the stuff we have on Tuesday mornings.

The New Leviathan: Or Man, Society, Civilization and Barbarism - Part I, Chapter I, aphorism I.42 (p. 3), At The Clarendon Press. 1942