Russell held that we must be acquainted with the constituents of the contents of our thoughts, and remnants of this doctrine persist in the work of a number of more recent philosophers. Our knowledge of our own phenomenal experience is supposed to be a paradigm of acquaintance, but acquaintance is sometimes explained in a way that implies that it involves knowledge of the essential nature of a thing or property.

2007 Lecture 5: Acquaintance and essence

The John Locke Lectures are among the world's most distinguished lecture series in philosophy. The series began in 1950 and are given once a year.

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Fourth and final lecture in the 2011 John Locke lecture series. Philosophy is a demanding intellectual discipline, with many facets: logic, epistemology, philosophy of nature and science, metaphysics, ethics, political philosophy, philosophy of art, rhetoric, philosophy of language and mind. But a long tradition of ancient Greek philosophers, beginning with Socrates, made their philosophies also complete ways of life. For them reason, perfected by philosophy-not religion, not cultural traditions and practices-constitutes the only legitimate authority for determining how one ought to live. They also thought philosophically informed reason should be the basis for all our practical attitudes, all our decisions, and in fact the whole of our lives. In these lectures we examine the development of this pagan tradition in philosophy, from its establishment by Socrates, through Plato and Aristotle, the Stoics, Epicurus, the Pyrrhonian Skeptics, and Plotinus and late ancient Platonism.

2011 Lecture 4: Platonism as a Way of Life

Third lecture in the 2011 John Locke Lecture Series. Philosophy is a demanding intellectual discipline, with many facets: logic, epistemology, philosophy of nature and science, metaphysics, ethics, political philosophy, philosophy of art, rhetoric, philosophy of language and mind. But a long tradition of ancient Greek philosophers, beginning with Socrates, made their philosophies also complete ways of life. For them reason, perfected by philosophy-not religion, not cultural traditions and practices-constitutes the only legitimate authority for determining how one ought to live. They also thought philosophically informed reason should be the basis for all our practical attitudes, all our decisions, and in fact the whole of our lives. In these lectures we examine the development of this pagan tradition in philosophy, from its establishment by Socrates, through Plato and Aristotle, the Stoics, Epicurus, the Pyrrhonian Skeptics, and Plotinus and late ancient Platonism.

2011 Lecture 3: The Stoic Way of Life

Second lecture in the 2011 John Locke Lecture Series. Philosophy is a demanding intellectual discipline, with many facets: logic, epistemology, philosophy of nature and science, metaphysics, ethics, political philosophy, philosophy of art, rhetoric, philosophy of language and mind. But a long tradition of ancient Greek philosophers, beginning with Socrates, made their philosophies also complete ways of life. For them reason, perfected by philosophy-not religion, not cultural traditions and practices-constitutes the only legitimate authority for determining how one ought to live. They also thought philosophically informed reason should be the basis for all our practical attitudes, all our decisions, and in fact the whole of our lives. In these lectures we examine the development of this pagan tradition in philosophy, from its establishment by Socrates, through Plato and Aristotle, the Stoics, Epicurus, the Pyrrhonian Skeptics, and Plotinus and late ancient Platonism.

2011 Lecture 2: Aristotle's Philosophy as Two Ways of Life

Part of the 2011 John Locke Lecture Series; this year presented by Professor John Cooper, Princeton University, on 'Ancient Greek Philosophies as a Way of Life'. Philosophy is a demanding intellectual discipline, with many facets: logic, epistemology, philosophy of nature and science, metaphysics, ethics, political philosophy, philosophy of art, rhetoric, philosophy of language and mind. But a long tradition of ancient Greek philosophers, beginning with Socrates, made their philosophies also complete ways of life. For them reason, perfected by philosophy-not religion, not cultural traditions and practices-constitutes the only legitimate authority for determining how one ought to live. They also thought philosophically informed reason should be the basis for all our practical attitudes, all our decisions, and in fact the whole of our lives. In these lectures we examine the development of this pagan tradition in philosophy, from its establishment by Socrates, through Plato and Aristotle, the Stoics, Epicurus, the Pyrrhonian Skeptics, and Plotinus and late ancient Platonism.

2011 Lecture 1: Philosophy in Antiquity as a Way of Life

Fifth and final lecture in the 2009 John Locke lectures entitled Being Realistic about Reasons.  Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

2007 Lecture 5: Acquaintance and essence

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