The common-sense view that reasons guide us in thought and action and that humans are essentially reason-responsive animals is increasingly under attack by defenders of what one can call the Rationalisation View, which emphasises that we typically rationalise actions and judgements that are based on intuition rather than reasoning. This article defends the former view of human Reason, partly by replying to prominent advocates of the latter, partly by proposing accounts of reflective reasoning and rationalisation that bring to light a (...) common, underappreciated feature: they both involve the capacity to see considerations as reasons. This capacity, the author conjectures, should be the starting point for investigating the faculty we call ‘Reason’, its evolutionary origin, and the (ir)rationality of different kinds of thought associated with it. (shrink)