The best 19 Theoretical Philosophy books

These blinks will teach you the ancient wisdom that inspired the modern science of well-being. Your teachers are the greatest ancient philosophers, and each lesson reveals questions and techniques that can help you on your path to leading a good life. Philosophy for Life has been published in 19 countries and was selected as a Times book of the year 2013.

Meditations on First Philosophy (1641) is one of Descartes’s most influential works, known as the source of the classic quote: “I think, therefore I am” or “cogito ergo sum.” These blinks capture Descartes’ thoughts on how we know what we know, and his attempts to prove God’s existence along the way.

Everyday, we benefit from huge advances in both scientific theory and practice. What triggered this progress? In The Beginning of Infinity (2011) – a journey through the fundamental fields of science and philosophy – physicist David Deutsch argues that all progress results from one single human activity: the quest for explanations. Human creativity opens up limitless opportunities for progress, making knowledge the “beginning of infinity.”

Mindware (2015) is a guide to reason. These blinks explain why we make irrational assumptions while presenting the cognitive tools that statisticians, logicians and philosophers use to approach everyday problems with objectivity.

The Ego Trick (2011) explores the slippery topic of what we call “I” or “me.” These blinks give insight into the many factors that shape our sense of self, including brain function and dysfunction, society, culture and technological changes, and introduce the key philosophical questions behind our ideas about identity, souls and free will.

Conscious (2019) offers a contemplative and probing look at one of life's central mysteries: consciousness. Author Annaka Harris explores two fundamental questions: How do we define consciousness? And how widespread is its existence in the universe?

A Brief History of Thought (1996) chronicles the big moments in the history of Western philosophy in a lucid and accessible way – from the Stoicism of classical Greece right through to twentieth-century postmodernism. Not simply a description of abstract ideals, it shows how we can apply the wisdom of the world’s best thinkers to live happier and more meaningful lives.

Doing Philosophy (2018) dispels some of the stereotypes that continue to hound philosophers. In particular, it takes aim at the pervasive idea that philosophy has become irrelevant in light of the success of the natural sciences, and makes a compelling case for why philosophy is still important and influential today.

The Art of Logic (2018) tackles an increasingly important question: How do we navigate through a post-truth world, where fake news and social media are shaping reality? Mathematician Eugenia Cheng demonstrates how we can use logic to challenge our assumptions and seek truth. And surprisingly, she shows us that when we combine logic with emotion, we’re better able to navigate through our illogical world.

The Ethics of Ambiguity (1947) is one of the foundational texts of existentialist philosophy. It's both a succinct summary of existentialist thought and a thorough interrogation of its ethical ramifications in the real world. By reflecting on what it means to be human, this book is a call to recognize and act upon one fundamental truth of our existence: that we are free.

The Critique of Pure Reason (1781) is one of the most groundbreaking, revolutionary, and influential books in the history of Western philosophy. Pointing out the limits of human reason, it argues that we can have knowledge about the world as we experience it, but we can never know anything about the ultimate nature of reality.

Making Sense (2020) consists of conversations about some of life’s biggest questions: the nature of consciousness, the progression of tyranny, the history of racism, the mysteries of the universe, and the challenges posed by artificial intelligence. Though the topics it covers are wide-ranging, its ultimate goal is to explore the ways in which we can understand our minds and harness their power to build the best possible world for everyone.

War (2020) is a philosophical inquiry into the nature of human conflict. It considers war from different angles, examining what causes it, how we think about it, and how it affects us. By making an effort to understand war, we become better prepared to avoid it.

The Logic of Scientific Discovery (1935) is Karl Popper’s classic work on the purpose of science and knowledge. Scientists should test their theories not to verify them, but to falsify them, and hence become even more accurate.

Humanly Possible (2023) traces the roots of humanism in literature and science back through history. While telling the stories of the great humanist thinkers, it sheds light on humanity today as well as how we can better relate to our lives and environment through humanist beliefs and pursuits. 

Life Worth Living (2023) is about discovering your own vision for a meaningful life. It offers a wide spectrum of philosophic and theological ideas in order to better understand what is most important to you, and how to turn that understanding into action.

Being and Time (1927) is perhaps the most influential work of philosophy written in the twentieth century. Infamous for its infuriating, almost impenetrable complexity, its pages explore the most fundamental of all questions for a human being: what is it to be?

Tractatus Logico-Philosophicus (1921) is a singular and ground-breaking work of modern philosophy that attempts to illuminate the relationship between logic, language, and reality.

Being and Nothingness (1943) is a seminal work of existentialist philosophy. It explores the major themes of existentialism, such as the intricacies of human consciousness, free will, and the interplay of objectivity and subjectivity.