COLLINGWOOD'S VIEW OF HISTORY 723 history of them'.1 An open-minded student of military history will find this dictum of Collingwood's less convincing than the picture of Bagra- tion's generalship in Tolstoy's War and Peace. We need not, however, subpoena either Tolstoy or Somervell or Thucydides to rise up in judgement against3 Collingwood, since we can win our case more expeditiously by appealing from Collingwood theoriz- ing about history as a philosopher to the same Collingwood studying and writing history as an historian. An equal eminence in two fields of intellectual activity was the distinctive mark of Collingwood's genius, and his characteristic achievement as an historian was his masterly em- ployment of Archaeology in History's service. 'Everything belonging to* an event 'which can be described hi terms of bodies and their move- ments'3 was grist to Collingwood the historian's mill, though it might be chaff to Collingwood the philosopher's winnowing fan; and, in virtue of their rare archaeological merits, Collingwood's own historical works would fail still more ignominiously than Thucydides' or Gibbon's to pass the test of Collingwood's idea of History. How has this historian-philosopher arrived at an idea of History which he has confuted by 'direct action* of Ms own ? Collingwood's confutation of Collingwood is as irresistible as Doctor Johnson's confutation of Bishop Berkeley. The historian has given a conclusive kick to a philo- sopher's stone that is a plain man's stumbling-block. How has the philo- sopher ever come to erect the artificial obstacle which the historian in the same philosopher's skin has unceremoniously removed from our path? An answer to this question may perhaps be elicited from the following arrestingly paradoxical passage. *If the discovery of Pythagoras concerning the square on the hypotenuse is a thought which we today can think for ourselves, a thought that con- stitutes a permanent addition to mathematical knowledge, the discovery of Augustus, that a monarchy could be grafted upon the Republican con- stitution of Rome by developing the implications of proconsulare imperiwn and tribunicia potestas, is equally a thought which die student of Roman history can think for himself, a permanent addition to political ideas. If Mr. Whitehead is justified in calling the right-angled triangle an eternal object, the same phrase is applicable to the Roman constitution and the Augustan modification of it. This is an eternal object because it can be apprehended by historical thought at any time; time makes no difference to it in this respect, just as it makes no difference to the triangle/4 In this passage Collingwood shocks even an unphilosophic-minded reader by placing a political improvisation on all fours with a mathematical proposition on the score of its being 'a permanent addition to political ideas'. The mathematical theorem which came into the focus of human consciousness for the first time in Pythagoras* mind, according to the Hellenic tradition, was in truth 'a permanent addition to mathematical knowledge* in the sense that, when once this element in an eternally valid system of mathematical truth had been brought within the pale of a Collective Human Intellect, it was open, ever afterwards, to any other i Ibid., p. 310. 2 Matt. xiL 42. a Ibid., p. 213. * Ibld*» PP- 217-18.