The doctrine due to Peirce, that it is not necessary that beliefs be certain, or grounded on certainty. We may justifiably rest content with beliefs in circumstances in which further evidence, forcing us to revise our opinion, may yet come in. Indeed, since this is always our position, unless we settle for it we shall be driven to scepticism. For Peirce an enquiry ‘is not standing upon the bedrock of fact. It is walking upon a bog, and can only say, this ground seems to hold for the present. Here I will stay till it begins to give way’. The view therefore locates a position between dogmatism and scepticism.