What is called 'the age of reason' should properly be considered 'the age of feeling, sympathy and sensibility', argues Robertson. The opposition between reason and tradition, which was crucial to the Enlightenment, has been conflated with an opposition between reason and emotion, which was not. These are fairly standard points, as is highlighting the role of 'sensibility' in Enlightenment ethics, and how Francis Hutcheson, Lord Shaftesbury and David Hume variously argued that emotion, rather than reason, was, and should be, both the spur to, and the foundation for, moral behaviour. More original is Robertson’s fine-grained portrayal of how both reason and emotion were recalibrated in the Enlightenment..