History of Philosophy: Twentieth-Century Perspectives is based on the Royal Institute of Philosophy's annual lecture series for 2014–15. A group of eminent scholars consider important figures in the history of philosophy from Plato and Aristotle to twentieth-century philosophers including Frank Ramsey and Wittgenstein. Along the way, there are considerations of Plotinus and Aquinas, the Rationalists and Empiricists of the seventeenth and eighteenth centuries, as well as Kant, Hegel, Nietzsche, Frege and the Analytic Revolution. Readers will find new perspectives on the thought of these philosophers as well as stimulating discussions of the validity of their arguments. The volume will be essential reading for all those interested in the history of philosophy.