 Collingwood’s account of absolute presuppositions generates an interesting angle on the question of scepticism concerning induction. Hume had argued that inductive inferences rely on the principle of the uniformity of nature. If it is true that the future resembles the past, then inferences such as “the sun will rise tomorrow” are inductively justified. However, since the principle is neither a proposition about matters of fact nor one about relations of ideas the proposition “nature is uniform” is an illegitimate metaphysical proposition and inductive inferences lack justification. The principle of the uniformity of nature, Collingwood argues, is not a proposition, but an absolute presupposition, one which cannot be denied without undermining empirical science. As it is an absolute presupposition the notion of verifiability does not apply to it because it does its job not in so far as it is true, or even believed to be true, but in so far as it is presupposed. The demand that it should be verified is nonsensical and the question that Hume ask does not therefore arise: