Morris's bold venture merits careful attention ... This book is like a breath of fresh air in the face of sterile and reductive neo-functional accounts of content. It captures the insight that human psychology is adapted to tracking human and social responses to the world rather than forging some individualistic extension-response based path through it ... I find Morris's views and arguments deeply congenial. His book is, I believe, essential reading for those wanting seriously to engage with current controversies in the philosophy of mind and content and to examine their impact on our epistemology.

• Notational conventions. Part 1 Metaphysics and content: philosophical theories and metaphysical schemes; conceptualism is Kantian; informativeness; scientism; a proposal for a scientific metaphysics. Part 2 The shape of a theory of content: what is a theory of content?; unified externalism; the explanation of behaviour. Part 3 An evaluative theory of content: the core of a theory; intrinsic assessability; truth and virtue; understanding people; word-meaning and opacity.

Morris's bold venture merits careful attention ... This book is like a breath of fresh air in the face of sterile and reductive neo-functional accounts of content. It captures the insight that human psychology is adapted to tracking human and social responses to the world rather than forging some individualistic extension-response based path through it ... I find Morris's views and arguments deeply congenial. His book is, I believe, essential reading for those wanting seriously to engage with current controversies in the philosophy of mind and content and to examine their impact on our epistemology.

• Notational conventions. Part 1 Metaphysics and content: philosophical theories and metaphysical schemes; conceptualism is Kantian; informativeness; scientism; a proposal for a scientific metaphysics. Part 2 The shape of a theory of content: what is a theory of content?; unified externalism; the explanation of behaviour. Part 3 An evaluative theory of content: the core of a theory; intrinsic assessability; truth and virtue; understanding people; word-meaning and opacity.