 As noted above, William James famously sniffs at the impracticable stringency of Clifford's Principle, advocating instead the more liberal policy that we sometimes have the “right to believe” even when we lack sufficient evidence (and even when we know that we lack it). In places, James goes further and suggests that in certain cases—especially cases involving religious and moral belief—it is not merely permitted but positively commendable or even required that we believe on insufficient evidence.