Professor Lewis’s book is a methodical defence of a traditional dualism against its contemporary opponents. He is thoroughly out of sympathy with many of the writers he examines – their arguments are ‘desperate, tortuous and unconvincing’ – and the general intimidating tone becomes somewhat wearisome after a while, even to one sympathetic to the position he defends.

The Life of the Mind was originally intended to cover an examination of three fundamental aspects of mind: Thinking, Willing, and Judging. Arendt’s death in 1975 precluded the completion of the entire work, leaving only the first two volumes for publication.