'The sin of certainty' (Enns) ‘The Sin of Certainty’ – 1 ‘The Sin of Certainty’ – 2 ‘The Sin of Certainty’ – 3 ‘The Sin of Certainty’ – 4 ‘The Sin of Certainty’ – 5 ‘The Sin of Certainty’ – 6 ‘The Sin of Certainty’ – 7 ‘The Sin of Certainty’ – 8 ‘The Sin of Certainty’ – 9