The Meditations and Cartesian Philosophy
Meditations on First Philosophy
is, indisputably, one of the greatest philosophical classics of
The challenge it offers is in many ways definitive of the philosophical enterprise: to leave
behind the comfortable world of inherited prejudice and preconceived opinion; to take nothing for
granted in the determination to achieve secure and reliable knowledge.
Descartes talks of
“demolish[ing] everything completely and start[ing] again right form the foundations”, and for this
purpose he famously uses doubt, stretched to its limits, as an instrument which self-destructs, impelling
him forwards on the journey towards certainty and truth.
(See the opening paragraph of the
Descartes' use of doubt, and other key philosophical issues in the
discussed in the Introductory essay to the present volume, by Bernard Williams.)
These central themes
are today part of every introductory course in the philosophy of knowledge: Descartes' masterpiece has
achieved canonical status in that part of the philosophy syllabus we now call “epistemology”.
Descartes himself these epistemic concerns were but one part of a much wider project, the construction
of a grand, all-embracing system of philosophy which would encompass metaphysics, natural science,
psychology and morals, connecting all the objects within the scope of human understanding.
words of the famous metaphor which he deployed some six years after the publication of the
, “the whole of philosophy is like a tree.
The roots are metaphysics, the trunk is physics,
and the branches .
.. all the other sciences”
Principles of Philosophy
, Preface to the French Edition of
Descartes spent much of his career occupied with what we would nowadays call theoretical physics: he
devised a radical new theory of the nature of matter, defined simply as extension in three dimensions,
and formulated a number of mathematical laws describing the results of collisions of moving particles
He then proposed to apply these principles to a wide variety of subjects, from cosmology
and astronomy to physiology and medicine; and towards the end of his life he planned to include a
science of man, which would develop prescriptions for how to understand and control the workings of
our bodies, and how to live fulfilled and worthwhile lives.
Examining the course of Descartes' life, and
the context in which the
was written, helps us deepen our understanding of the
metaphysical and epistemological themes of his most famous book by seeing how they fit into the
broader philosophical system which he devoted his life to creating.
René Descartes was born in France on 31 March 1596 in the small town of La Haye (now renamed