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Ethics and the Limits of Philosophy
Williams's 1985 diagnosis of the morality system — the single most influential challenge to systematic ethics in late-twentieth-century philosophy, and the book whose argument the AI discourse has most urgently needed and most systematically ignored.
Ethics and the Limits of Philosophy (1985) is Williams's most sustained critique of what he called 'the morality system' — the demand that moral questions resolve through the application of foundational principles. The book argues that the systematic ambitions of both utilitarianism and Kantianism distort moral reality by demanding completeness where genuine complexity exists. Williams introduces the distinction between thick and thin ethical concepts, defends internal reasons against external-reason theorists, and offers his most extensive case for why moral philosophy should abandon the project of delivering systematic answers and return to attending to the texture of ethical experience. The book's central arguments illuminate the AI transition with a force Williams could not have anticipated.
In The You On AI Field Guide
Published at the height of the analytic tradition's confidence in systematic moral theory, the book represented a deliberate break. Williams argued that the ambition to produce a