Francis Bacon (1561-1626), 1st Viscount St Albans, Attorney General and then Lord Chancellor of England, was an immensely learned, clever and ambitious man, with considerable political influence. However, he was also a philosopher with a wide interest in science, medicine and the classification of knowledge. Throughout his life he wrote a series of essays - following the manner set particularly by Montaigne, though extending back to Aristotle and others - the first 10 of which appeared in 1597.

Sir Francis Bacon, sometimes known as the father of empiricism, was one of the major political figures of his day, his career culminating as Lord Chancellor under King James I in 1617. Bacon wrote widely, but it is the Essays (published in its third edition in 1625, the year before his death) for which he is best known. Deftly written and often displaying a cutting wit, they cover a wide range of subjects including death, love, marriage, ambition and atheism.

The leviathan is the vast unity of the State. But how are unity, peace, and security to be attained? Hobbes’ answer is sovereignty, but the resurgence of interest today in Leviathan is due less to its answers than its methods: Hobbes sees politics as a science capable of the same axiomatic approach as geometry.

John Locke and his works - particularly An Essay Concerning Human Understanding - are regularly and rightly presented as foundations for the Age of Enlightenment. His primary epistemological message - that the mind at birth is a blank sheet waiting to be filled by the experiences of the senses - complemented his primary political message: that human beings are free and equal and have the right to envision, create and direct the governments that rule them and the societies within which they live.

Aristotle considers ‘the principles and causes of change, or movement’ behind both animate and inanimate things. It is philosophy, not science, but over centuries affected the views of those involved in the ‘natural sciences’. The text emerged from the Lyceum, the school founded by Aristotle, and is accepted to be a compilation of texts, some of which - but perhaps not all - is by Aristotle. Regardless of authorship, its importance is unquestioned.

Aristotle’s Organon comprises six key essays on logic, initially collected by Theophrastus, his successor as head of the Peripatetic school, and given its final form by Andronicus some three centuries later. The six essays are: Categories, On Interpretation, Prior Analytics, Posterior Analytics, Topics and On Sophistical Refutations. One of the principal topics of Aristotle’s focus is syllogism, in which two premises (one major, one minor) lead to a conclusion. This features in Prior Analytics and On Interpretation.

Aristotle's Metaphysics was the first major study of the subject of metaphysics - in other words, an inquiry into 'first philosophy', or 'wisdom'. It differs from Physics which is concerned with the natural world: things which are subject to the laws of nature, things that move and change, are measurable. In Metaphysics, the study falls on 'being qua being' - being insofar as it is being; the causes and principles of being, the causes and principles of substances.

Paradise Lost, along with its companion piece, Paradise Regained, remain the most successful attempts at Greco-Roman style epic poetry in the English language. Remarkably enough, they were written near the end of John Milton's amazing life, a bold testimonial to his mental powers in old age. And, since he had gone completely blind in 1652, 15 years prior to Paradise Lost, he dictated it and all his other works to his daughter.

Summa Theologica consists of three main parts. The second part is divided two, and this recording presents Prima Secundae - Part I of Part II. Taken in its entirety, Summa Theologica forms an essential contribution to the canon of Catholic doctrine and was written in the last decade of his life by Thomas Aquinas (1225-1274), an Italian-born Dominican friar. Although he died before completing it, the body of thought it contains is a continuing influence to the education and guidance of students of theology in the main Christian traditions.

Plutarch (c. AD 46-AD 120) was born to a prominent family in the small Greek town of Chaeronea, about 20 miles east of Delphi in the region known as Boeotia. His best known work is the Parallel Lives, a series of biographies of famous Greeks and Romans, arranged in pairs to illuminate their common moral virtues and vices. The surviving lives contain 23 pairs, each with one Greek life and one Roman life as well as four unpaired single lives.

In 1572, Montaigne - nobleman, humanist, and thoroughly Renaissance man - retired to the seclusion of his estate in the Dordogne and started to write. From his pen poured a stream of "essays" - attempts to capture the observations that came to him on an idiosyncratic range of subjects, from ancient customs, cannibals, and books to thumbs, war-horses, and the wearing of clothes. He made the study of himself the starting point for investigations into how to live, and wrote with a startlingly modern candor about love, grief, friendship, sex, and death.

This remarkable poem, dedicated to Queen Elizabeth I, was Spenser's finest achievement. The first epic poem in modern English, The Faerie Queene combines dramatic narratives of chivalrous adventure with exquisite and picturesque episodes of pageantry. At the same time, Spenser is expounding a deeply-felt allegory of the eternal struggle between Truth and Error....

Though it first aroused anger and controversy rather than admiration and acceptance, A Theologico-Political Treatise was a landmark in the analysis of theology (with particular reference to the Bible and its Jewish and Christian interpretations) and its relationship to philosophy and politics. Spinoza’s scholarly analysis, based on careful study, demonstrated that the Bible was composed by many writers over the centuries - and that even the Pentateuch, the first five books, were not the work of Moses, as was generally assumed at the time.

He was the father of the occult, the founder of astrology, the discoverer of alchemy. He was Hermes Trismegistus, and as the scribe of the gods of ancient Egypt, he possessed all divine knowledge... which he passed on to humanity, though only those who have been tutored in its wonders can fully understand it.In this extraordinary 1912 book, three secret initiates to his teachings - who remain anonymous to this day - share their insight with all who seek to understand the mysterious underpinnings of the universe and our relationship with it.

Aristotle’s Nicomachean Ethics and Eudemian Ethics represent, in many ways, the Western classical springboard for the systematic study and implementation of ethics, the optimum behaviour of the individual. (By contrast, Aristotle’s Politics concerns the optimum blueprint for the city-state.) It is in the hands of each individual, he argues in these books on personal ethics, to develop a character which bases a life on virtue, with positive but moderate habits.

John Locke and his works - particularly An Essay Concerning Human Understanding - are regularly and rightly presented as foundations for the Age of Enlightenment. His primary epistemological message - that the mind at birth is a blank sheet waiting to be filled by the experiences of the senses - complemented his primary political message: that human beings are free and equal and have the right to envision, create and direct the governments that rule them and the societies within which they live.

There is a cause, or a reason, behind everything that happens. This is the fundamental view behind the classical proposition the Principle of Sufficient Reason, which, in 1813, Schopenhauer chose as his subject for further examination in his doctoral dissertation On the Fourfold Root of the Principle of Sufficient Reason....

Ralph Waldo Emerson's "Nature" is perhaps the greatest original work of philosophy written by an American. This specially-prepared edition includes a foreword on the origin and significance the book.

Written in 1900 by Nikola Tesla, this book gives great ideas on automation, agriculture, energy, and increasing human output to improve the human condition.

Written in 1917, The Law and the Word is a hard-to-find work by Judge Thomas Troward, a pioneer in mental science. Troward's writings and lectures greatly influenced Ernest Holmes, the founder of Religious Science and writer of The Science of Mind.

This book was one of the first to combine thought energy, scientific reasoning and testing, and creative power, and to see the interconnection of the three.

Socrates is in prison, sentenced to die when the sun sets. In this final conversation, he asks what will become of him once he drinks the poison prescribed for his execution. Socrates and his friends examine several arguments designed to prove that the soul is immortal. This quest leads him to the broader topic of the nature of mind and its connection not only to human existence but also to the cosmos itself. What could be a better way to pass the time between now and the sunset?

This simplistic and ingenious allegory from one of the fathers of Western philosophy casts light on society’s naiveté and ignorance.

This version of Nature is an 1843 revision to the popular essay written and published in 1836. In the original essay, Emerson put forth the foundation of transcendentalism and suggested that reality can be understood by studying nature. Within the essay, Emerson divides nature into four usages: commodity, beauty, language and discipline. These distinctions define how humans use nature for their basic needs, their desire for delight, their communication with one another, and their understanding of the world.

He was the father of the occult, the founder of astrology, the discoverer of alchemy. He was Hermes Trismegistus, and as the scribe of the gods of ancient Egypt, he possessed all divine knowledge... which he passed on to humanity, though only those who have been tutored in its wonders can fully understand it.In this extraordinary 1912 book, three secret initiates to his teachings - who remain anonymous to this day - share their insight with all who seek to understand the mysterious underpinnings of the universe and our relationship with it.

Already a classic, this landmark study of early Western thought now appears in a new edition with expanded coverage of the Middle Ages. Author Anthony Gottlieb looks afresh at the writings of the great thinkers, questions much of conventional wisdom, and explains his findings with unbridled brilliance and clarity. From the pre-Socratic philosophers through the celebrated days of Socrates, Plato, and Aristotle, up to Renaissance visionaries like Erasmus and Bacon, philosophy emerges here as a phenomenon unconfined by any one discipline.

The Discarded Image paints a lucid picture of the medieval worldview, providing the historical and cultural background to the literature of the middle ages and renaissance. It describes the 'image' discarded by later years as "the medieval synthesis itself, the whole organization of their theology, science, and history into a single, complex, harmonious mental model of the universe". This, Lewis' last book, has been hailed as "the final memorial to the work of a great scholar and teacher and a wise and noble mind".

This famous work by Lucretius is a masterpiece of didactic poetry, and it still stands today as the finest exposition of Epicurean philosophy ever written. The poem was produced in the middle of first century B.C., a period that was to witness a flowering of Latin literature unequaled for beauty and intellectual power in subsequent ages. The Latin title, De Rerum Natura, translates literally to On the Nature of Things and is meant to impress the reader with the breadth and depth of Epicurean philosophy.

The Summa Theologica, by Thomas Aquinas, is a fundamental text in Catholic doctrine, a compendium of theology that has been studied and debated since its first publication in the 13th century. Furthermore, it has been widely regarded as one of the classics of Western philosophy, not least because, perhaps for the first time in such a systematic manner, it set out to consider the views of non-Christian figures such as Aristotle, Boethius, Muslim writers including Averroes (Ibn Rushd) and Avicenna (Ibn Sina) and the Sephardic Jewish scholar Maimonides.

A witty and inventive satire of "men of science" and their thinking, as a team of scientists races to decode a mysterious message from space. "I had the feeling that I was standing at the cradle of a new mythology. A last will and testament...we as the posthumous heirs of Them...."

James Gleick has long been fascinated by the making of science: how ideas order visible appearances, how equations can give meaning to molecular and stellar phenomena, how theories can transform what we see. In Chaos, he chronicled the emergence of a new way of looking at dynamic systems; in Genius, he portrayed the wondrous dimensions of Richard Feymnan's mind.