Abstract
This chapter examines what Hume and Reid had to say about what Reid called our intellectual powers: sensation, conception, perception, memory, abstraction, judgement, and reasoning. In the process it examines their opposed views on the nature of mind, on the representation of space and the spatiality of mental content, on temporal experience and the metaphysics of time, on the conception of non-existent objects, and on conceivability and possibility. The chapter critically examines what each had to say in his own defence and what Reid had to say in opposition to Hume, and conjectures what Hume might have said in response to Reid.