The unexamined life is not worth living; nature loves to hide; you can’t step in the same river twice. No doubt we’ve all grown up hearing aphorisms, but perhaps we take their importance for granted. Andrew Hui, the author of the first full book on the theory of the aphorism, guides us through the history of the short philosophical saying from Heraclitus to Nietzsche and beyond.

Do you know your straw man arguments from your weasel words? Nigel Warburton, Five Books’ philosophy editor and author of Thinking from A to Z, selects five of the best books on critical thinking—and explains how they will help us make better informed decisions and construct more valid arguments.

How should we live? What is the nature of reality? Should pro golfers be allowed to use carts? British philosopher Nigel Warburton sets us off down the road of philosophical enquiry with an intriguing reading list

Today, we think of scientists and philosophers as distinct, but it wasn’t always this way. Back when the Royal Society was founded in the 1660s, figures like Newton, Descartes and Boyle all thought of themselves as ‘natural philosophers’. Justin E. H. Smith, professor of philosophy at the Université de Paris, introduces us to what he sees as the real history of philosophy.

The ‘hard problem’ of consciousness – of how the physical matter of the brain produces the psychological phenomenon of consciousness – has dogged psychologists and neuroscientists for decades. But what if we’ve been posing the question incorrectly all this time? The psychologist Susan Blackmore discusses five key texts that tackle this quicksilver concept.

What can Nietzsche and Aristotle teach us about how to live? Should everyone read Being and Nothingness? From a philosophical approach to misogyny to an interrogation of whether it’s morally acceptable to have a Facebook account, philosopher Nigel Warburton introduces us to the best philosophy books of 2018.

How should we live our lives? How can we best help others? What is the meaning of religious belief? The philosopher Nigel Warburton introduces us to some of the best philosophy books published in 2017.

British philosopher Jonathan Wolff chooses five books by thinkers who have shaped the field. He explores the experiences that influenced each writer, saying ‘it’s very rare for philosophers to say very much about their history and what brought them to the views they have’.

French philosopher and sociologist Geoffroy de Lagasnerie argues for a more realist political theory, one that fully acknowledges that state violence is the one thing in your life that you can never escape. His selection includes works by Michel Foucault and Walter Benjamin, as well as a history of the Black Panther Party.

The Stoics offer us valuable strategies of thinking about and dealing with hardships that remain relevant for modern society, says the philosophy professor and author Massimo Pigliucci. Here he recommends the five books that best express the essence of Stoicism and how it might be applied to real life.

Existentialist philosophy isn’t about bringing despair and angst into our lives, it’s about discovering our inner freedom, explains Sarah Bakewell, the author of At the Existentialist Café: Freedom, Being, and Apricot Cocktails. She recommends the best books on Existentialism.

The nineteenth century saw not only a widespread interest in philosophical ideas but also philosophy’s development as a more rigorous discipline. Australian philosopher Peter Singer introduces us to the highlights of a century of philosophy books.

A pioneering figure in analytic philosophy, Ludwig Wittgenstein (1889-1951) is a clear example of philosophical genius. A profoundly intense, tortured, and solitary man, he produced two masterpieces of philosophy with fundamentally opposed views of language — both of which have been wildly influential. Peter Hacker introduces us to perhaps the most important philosopher since Kant, and explains why Wittgenstein would be horrified by Noam Chomsky.

Plato expert Professor Melissa Lane chooses the best Plato books to help us understand him. He came from a politically active family, but renounced politics to become a philosopher. Or did he?

Science is often held to give us the best insight into the nature of reality, with a prestige unmatched in other disciplines. But what is the scientific method and how does it operate? Does it give us objective knowledge or does it just 'work'? And if an electron is an “unobservable entity”, why should we believe that they exist? Professor Stathis Psillos gives a detailed look at the philosophy of science

Relativist, atheist, existentialist, Nazi. All have been said of Nietzsche, some with more reason than others. We asked a Nietzsche expert to explain the appeal of the controversial philosopher and to recommend Nietzsche books.

Simone de Beauvoir is remembered today as the pioneering feminist author of The Second Sex and a close companion of Jean Paul Sartre. But the scope of her intellectual contribution has long been underestimated, argues her latest biographer Kate Kirkpatrick, who offers an introduction to the landscape of Beauvoir’s works, from fiction to philosophy to life writing.

Aristotle, says Edith Hall, is “quite simply the most important intellectual who ever lived.” Here the author and classicist selects five key Aristotle books to further your understanding of the great philosopher’s life and work.

The eighteenth-century philosopher wielded his powers of ridicule and witticism against religious fanatics—but always championed free speech and religious toleration. He was also a historian, scientist, poet, playwright, and political activist. Nicholas Cronk, General Editor of the Complete Works of Voltaire gives a detailed look at the polymathic philosophe.

The experimental investigation of the mind is now the province of psychology and neuroscience – but many conceptual and metaphysical questions remain. Philosophy of mind deals with these fundamental questions, says Keith Frankish, as he selects five of the best books in the field.

Immanuel Kant was born in Königsberg, lived in Königsberg, and never travelled very far from Königsberg—but his mind ranged across vast territories, says Oxford philosophy professor, Adrian Moore. He selects five key texts for coming to grips with the work of “the greatest philosopher of all time.”

Few people have had their ideas reinvented as many times as the German intellectual and political activist, Karl Marx. Professor of political theory, Terrell Carver, takes us through the most influential books, in English, about Marx, Marxism and his friend, publicist and financial backer, Friedrich Engels.

The classical Greek philosopher is credited with laying the foundation of Western philosophy – without ever having written a word. Here, the eminent scholar M M McCabe recommends the best books to read to understand Socrates and engage with the eternal question: How best to live?

It’s abstract and not everyone’s cup of tea but, in many ways, inescapable. Philosopher Tim Crane introduces the best books on metaphysics.

G W F Hegel is one of the most divisive figures in western philosophy. He influenced Marx, Kierkegaard, Nietzsche, Sartre, Adorno and countless others. And yet, he is seen as perhaps the most obscure and inaccessible philosopher to read. Is he worth engaging with? How should we read him? Stephen Houlgate, a philosopher at Warwick University, gives us an in-depth look at Hegel.

“It’s not surprising that he died at forty-two, because he burned himself out restlessly, relentlessly pursuing this question of how to be a human being.” Søren Kierkegaard’s latest biographer Clare Carlisle recommends five books for understanding the Danish philosopher’s life and work—and shows how his work often bears witness to the complex, fraught experience of being alive.

What is art? Does it have to be good? Is it up to a museum curator or other expert to decide? If so, how did the first art arise? A leading philosopher chooses the best books on the philosophical questions surrounding art.

They were young, they were radical, they influenced everything from Nietzsche to The Sound of Music. Angela Hobbs introduces the best books on the Presocratics.

The skills of a philosopher and those of a novelist are often in tension, but they have much to learn from each other, says novelist and philosopher, Rebecca Newberger Goldstein. She chooses her favourite philosophical novels.

The study of philosophy in the Western world is often parochial, and limited to the study of the Anglo-European tradition. It’s time to widen our focus, advises the author and philosopher Bryan Van Norden. Here he selects five foundational texts of philosophical traditions worldwide.

Hume had a message he wanted to get out — particularly as regards skepticism about religion — but he was no proto-Richard Dawkins, says Cambridge philosopher, Simon Blackburn. He chooses the best books on (or by) David Hume.

How do evil-doers justify their behaviour? A common view of evil sees dehumanisation as fundamental. Yale psychologist Paul Bloom argues, however, that the picture may not be so simple. The most callous acts of cruelty and evil involve recognising the human feelings of the victim, their ability to feel shame and humiliation.

What are human rights? Are they reducible to the rights enshrined in law or do they somehow objectively exist? Philosopher John Tasioulas picks the best five books on human rights.

From the work of an 18th century atheist priest, to recent research in the cognitive anthropology of religion, atheist philosopher of religion Graham Oppy discusses the books that have been most influential to him.

Which are the best books on the Enlightenment? Jonathan Israel, one of the leading historians of early modern Europe, recommends his top five.

What is the nature of human existence in the world? What should philosophy be concerned with as a discipline? Philosopher Simon Critchley introduces us to the landscape of continental philosophy.

Arabic philosophy was hugely influential during the Islamic Golden Age; at one point, the Persian polymath Avicenna’s influence outstripped that of Aristotle. But a strong tradition has continued in the centuries since, explains Professor Peter Adamson, as he selects five of the best books on the subject.

Should you feel responsible for helping the world become better? And if so, how should you use your time, money, and career to have the biggest possible impact? These are the questions addressed by the effective altruism movement. One of its leading figures, Will MacAskill, recommends the best books to answer them.

Finding meaning in life is not the same as finding happiness, argues Canadian philosopher Paul Thagard. He picks the best books on the meaning of life.

What do the sages of ancient China have to teach us about living in the 21st century? The Harvard professor and author of The Path, Michael Puett, recommends the texts you need to read to find out. He picks the best Chinese philosophy books.

What is love? Can you choose to do it? If love ends, was it really love? The author and academic Skye C Cleary selects five key texts that deal with philosophy of love, whether romantic, erotic, familial or platonic.

British philosopher Edward Skidelsky tells us about virtue from Plato to the modern day, and says Jane Austen got it right when she wrote about passion

Advances in artificial intelligence pose a myriad of ethical questions, but the most incisive thinking on this subject says more about humans than it does about machines, says Paula Boddington, Oxford academic and author of Towards a Code of Ethics for Artificial Intelligence.

Again and again we return to the question: how should we live? To Henry David Thoreau, the 19th-century author, philosopher and naturalist, the answer was simplicity itself. Here his biographer Laura Dassow Walls selects five key texts that explore the Thoreauvian way of thinking.

Known to many of us as the American Transcendentalist champion of individualism and self-reliance, Ralph Waldo Emerson is a much more soulful and sorrowful, brilliant but deeply contradictory thinker than we often give him credit for, says James Marcus, as he recommends the best books by – or about – Emerson.

As questions of identity become a focus of political debate, interest in existentialism has been booming once more. Here, the philosopher Jonathan Webber discusses five classic books dealing with existentialist themes that deserve a bigger audience.

Why do apparently ‘good’ people sometimes behave deplorably? Christian B Miller, professor of philosophy at Wake Forest University, selects five books that explore the subject of moral character and warns us to be cautious of making inferences about the underlying motives of others – and ourselves.

Should we be moral? Should we love? John Kaag, philosopher and author of American Philosophy: A Love Story and Hiking with Nietzsche: On Becoming Who You Are, puzzles how five American Pragmatist and Transcendentalist philosophers quarrel with these searching questions and other timeless subjects, from faith and belief to human rights.

Many philosophical theories try to evade the uncomfortable truth that luck and fate play a role in the conduct of our moral lives, argues philosopher Paul Russell. He chooses the best books on free will and responsibility.