The Gay Science (The Joyful Wisdom) is one of Nietzsche's greatest books. His wonderfully fertile mind roams over mankind, his thoughts, his emotions, his behaviour and his weaknesses with remarkable clarity, with insight - but also with humour!In this work are 383 separate paragraphs, some short, some long, but all singular observations - the epitome of his famous aphoristic style. 'Morality is the herd instinct in the individual.'

In On the Genealogy of Morals, subtitled "A Polemic", Nietzsche furthers his pursuit of a clarity that is less tainted by imposed prejudices. He looks at the way attitudes towards 'morality' evolved and the way congenital ideas of morality were heavily colored by the Judaic and Christian traditions.

Friedrich Nietzsche (1844-1900) is one of the towering intellectual figures of the 19th century, a philologist, philosopher and poet of profound complexity and range whose writings in moral philosophy continue to resonate in the present day. The Dawn of Day (Morgenröte), first published in 1881, marked a clear shift in his thinking and prefigures many of the ideas that would be further developed in his later writings. The clue is in the title, sometimes translated as Dawn or Morning, which suggests the beginning of a different awareness.

One of Nietzsche’s earliest works, The Birth of Tragedy (1872) is a remarkable source of inspiration. It is here that the philosopher expresses his frustration with the contemporary world and urges man to embrace Dionysian energy once more. He refutes European culture since the time of Socrates, arguing that it is one-sidedly Apollonian and prevents man from living in optimistic harmony with the sufferings of life.

Nietzsche never recovered from his mental breakdown in 1889 and therefore was unable to further any plans he had for the ‘magnum opus’ he had once intended, bringing together in a coherent whole his mature philosophy. It was left to his close friend Heinrich Köselitz and his sister Elizabeth Förster-Nietzsche to go through the remaining notebooks and unpublished writings, choosing sections of particular interest to produce The Will to Power, giving it the subtitle An Attempted Transvaluation of All Values.

Though Twilight of the Idols (written in a week in 1888 and subtitled How to Philosophise with a Hammer) came near the end of Nietzsche’s creative life, he actually recommended it as a starting point for the study of his work. This was because from the beginning he viewed it as an introduction to his wide-ranging views.

Untimely Considerations contain four essays: 'David Strauss - Writer and Confessor'; 'On the Use and Abuse of History for Life'; 'Schopenhauer as Educator'; and 'Richard Wagner at Bayreuth'. The essays date from the early part of Nietzsche’s life when his Romantic view on life and art was coloured by the powerful writings and personalities of such figures as Schopenhauer and Wagner - as the titles of two of the essays proclaim. Published between 1873 and 1876, they were presented under the umbrella title 'Unzeitgemässe Betrachtungen'.

The Antichrist and Ecce Homo were two of the last works written by Friedrich Nietzsche just before his mental collapse in 1889. Though both written in 1888, they are very different in content and style. In The Antichrist, Nietzsche expands on his view that the submissive nature of Christianity undermined Western society, depressing and sapping energy.

The Antichrist was aptly named. It is not so much aimed at the expression of any new perspective or in support of the expansion of knowledge but rather represents an effort to undo the religious interference Nietzsche believed worked against the advancement of culture and knowledge. In many ways he was the mouthpiece for the most unfavorable logical conclusions that rose to the fore in the meeting of the scientific and Christian perspective.

Continuing where Thus Spoke Zarathustra left off, Nietzsche's controversial work Beyond Good and Evil is one of the most influential philosophical texts of the 19th century and one of the most controversial works of ideology ever written. Attacking the notion of morality as nothing more than institutionalised weakness, Nietzsche criticises past philosophers for their unquestioning acceptance of moral precepts. Nietzsche tried to formulate what he called "the philosophy of the future".

The last works completed before Nietzsche's final years of insanity, Twilight of the Idols and The Antichrist contain some of his most passionate and polemical writing. Both display his profound understanding of human nature and continue themes developed in The Genealogy of Morals, as the philosopher lashes out at the deceptiveness of modern culture and morality. Twilight of the Idols attacks European society, Christianity, and the works of Socrates and Plato; The Antichrist explores the history, psychology, and moral precepts of Christianity.

Beyond Good and Evil confirmed Nietzsche's position as the towering European philosopher of his age. The work dramatically rejects traditional Western thought with its notions of truth and God, good and evil. Nietzsche seeks to demonstrate that the Christian world is steeped in a false piety and infected with a 'slave morality'. With wit and energy, he turns from this critique to a philosophy that celebrates the present and demands that the individual impose their own 'will to power' upon the world.

Schopenhauer was just 30 when his magnum opus, Die Welt als Wille und Vorstellung, a work of considerable learning and innovation of thought, first appeared in 1818.

Much to his chagrin and puzzlement (so convinced was he of its merits), it didn't have an immediate effect on European philosophy, views and culture. It was only decades later that it was recognised as one of the major intellectual landmarks of the 19th century.

What is life? What is my place in it? What choices do these questions obligate me to make? More than a half-century after it burst upon the intellectual scene - with roots that extend to the mid-19th century - Existentialism's quest to answer these most fundamental questions of individual responsibility, morality, and personal freedom, life has continued to exert a profound attraction.

Being and Time was published in 1927 during the Weimar period in Germany, a time of political, social and economic turmoil. Heidegger himself did not escape the pressures and his nationalism, and undeniable anti-Semitism in the following decades cast a shadow over the man, but not the work. Being and Time is not coloured by expressions of his later views (unlike other writings) and remains an outstanding document.

The Gay Science (The Joyful Wisdom) is one of Nietzsche's greatest books. His wonderfully fertile mind roams over mankind, his thoughts, his emotions, his behaviour and his weaknesses with remarkable clarity, with insight - but also with humour!In this work are 383 separate paragraphs, some short, some long, but all singular observations - the epitome of his famous aphoristic style. 'Morality is the herd instinct in the individual.'

Nietzsche never recovered from his mental breakdown in 1889 and therefore was unable to further any plans he had for the ‘magnum opus’ he had once intended, bringing together in a coherent whole his mature philosophy. It was left to his close friend Heinrich Köselitz and his sister Elizabeth Förster-Nietzsche to go through the remaining notebooks and unpublished writings, choosing sections of particular interest to produce The Will to Power, giving it the subtitle An Attempted Transvaluation of All Values.

Though Twilight of the Idols (written in a week in 1888 and subtitled How to Philosophise with a Hammer) came near the end of Nietzsche’s creative life, he actually recommended it as a starting point for the study of his work. This was because from the beginning he viewed it as an introduction to his wide-ranging views.

The Antichrist and Ecce Homo were two of the last works written by Friedrich Nietzsche just before his mental collapse in 1889. Though both written in 1888, they are very different in content and style. In The Antichrist, Nietzsche expands on his view that the submissive nature of Christianity undermined Western society, depressing and sapping energy.

In On the Genealogy of Morals, subtitled "A Polemic", Nietzsche furthers his pursuit of a clarity that is less tainted by imposed prejudices. He looks at the way attitudes towards 'morality' evolved and the way congenital ideas of morality were heavily colored by the Judaic and Christian traditions.

Friedrich Nietzsche (1844-1900) is one of the towering intellectual figures of the 19th century, a philologist, philosopher and poet of profound complexity and range whose writings in moral philosophy continue to resonate in the present day. The Dawn of Day (Morgenröte), first published in 1881, marked a clear shift in his thinking and prefigures many of the ideas that would be further developed in his later writings. The clue is in the title, sometimes translated as Dawn or Morning, which suggests the beginning of a different awareness.

The Critique of Practical Reason was published in 1788, seven years after Immanuel Kant's major work, Critique of Pure Reason. In it, Kant sets out his moral philosophy - and it proved a seminal text in the history of the subject. He argues that the summum bonum (the highest good) of life is that rather than just pursuing happiness, people should inhabit a moral dimension that enables them to deserve the happiness that God can give. Though much shorter than Critique of Pure Reason, this is the sourcebook for Kant’s ethical doctrines.

Kant's Prolegomena, although a small book, is without doubt the most important of his writings, writes the translator, Paul Carus. Prolegomena means, literally, prefatory or introductory remarks, and it furnishes us with a key to his main work, The Critique of Pure Reason; in fact, it is an extract containing all the salient ideas of Kant's system. It approaches the subject in the simplest and most direct way and is therefore best adapted as an introduction into his philosophy.

Thus Spoke Zarathustra is one of the most extraordinary - and important - texts in Western philosophy. It was written by Friedrich Nietzsche between 1883 and 1885. He cast it in the form of a novel in the hope that his urgent message of the 'death of God' and the rise of the superman (Ubermensch) would have greater emotional as well as intellectual impact.

Continuing where Thus Spoke Zarathustra left off, Nietzsche's controversial work Beyond Good and Evil is one of the most influential philosophical texts of the 19th century and one of the most controversial works of ideology ever written. Attacking the notion of morality as nothing more than institutionalised weakness, Nietzsche criticises past philosophers for their unquestioning acceptance of moral precepts. Nietzsche tried to formulate what he called "the philosophy of the future".

Epicurus of Samos (341-270 BCE) was the founder of the philosophical system to which he gave his name: Epicureanism. It is a label that is often misused and misunderstood today, with ‘a life of pleasure’ as the key aim misinterpreted as a life of indulgence. In fact, the philosophy of Epicurus demonstrated also by his life, was anything but! He established a school in Athens called The Garden, underpinned by his system of ethics.

The Will to Power is an audiobook of notes compiled from the literary remains of Friedrich Nietzsche. The title derives from a work that Nietzsche himself had intended to write. The "will to power", a prominent concept in his philosophy, describes what Nietzsche believed to be the main driving force in humans.

Schopenhauer was just 30 when his magnum opus, Die Welt als Wille und Vorstellung, a work of considerable learning and innovation of thought, first appeared in 1818.

Much to his chagrin and puzzlement (so convinced was he of its merits), it didn't have an immediate effect on European philosophy, views and culture. It was only decades later that it was recognised as one of the major intellectual landmarks of the 19th century.

The last works completed before Nietzsche's final years of insanity, Twilight of the Idols and The Antichrist contain some of his most passionate and polemical writing. Both display his profound understanding of human nature and continue themes developed in The Genealogy of Morals, as the philosopher lashes out at the deceptiveness of modern culture and morality. Twilight of the Idols attacks European society, Christianity, and the works of Socrates and Plato; The Antichrist explores the history, psychology, and moral precepts of Christianity.

Conjectures and Refutations is one of Karl Popper’s most wide-ranging and popular works, notable not only for its acute insights into the way scientific knowledge grows, but also for applying those insights to politics and to history. It provides one of the clearest and most accessible statements of the fundamental idea that guided his work: not only our knowledge but our aims and our standards grow through an unending process of trial and error.