Best Philosophy Books

Start with Plato's Apology, which is his account of Socrates's trial and death and requires no background knowledge. It is under 50 pages and it raises questions (what is wisdom, why do people fear what they do not understand, what is worth dying for) that feel as immediate as anything written this century. Follow it with Meno (on knowledge and virtue) and then the Republic if you want more Plato. If you want a broader map of Western philosophy first, Simon Blackburn's Think is the clearest single-volume introduction available.

Nietzsche is more readable than his reputation suggests, largely because the reputation was built by people who started with Beyond Good and Evil or Thus Spoke Zarathustra. Start instead with The Gay Science (sections 108 to 125 specifically, where he presents the death of God), or with On the Genealogy of Morality, which is the most structured of his major works. Nietzsche's difficulty is not his prose (which is vivid and often funny) but his habit of assuming you already know the philosophers he is arguing against.

Marcus Aurelius's Meditations is the best first Stoic text because it was never written for an audience. It is a private journal written to keep a Roman emperor honest with himself, which makes it more intimate and less didactic than Seneca's letters or Epictetus's Enchiridion. After Meditations, read Ryan Holiday's The Obstacle Is the Way for the modern application, and then return to the primary sources (Epictetus, Seneca) with a better sense of what you are looking for.

Western philosophy (in the Greek tradition) tends to focus on logic, epistemology (what can we know and how), metaphysics (what exists), and ethics grounded in rational argument. Eastern philosophy (Buddhism, Taoism, Confucianism, Vedanta) tends to focus on practice, on how to live rather than how to argue, and treats the separation between mind and world as itself the problem. The Tao Te Ching by Laozi and the Dhammapada (Buddhist teachings of the Buddha) are the two most accessible Eastern primary texts for Western readers.

The Examined Life by Robert Nozick, Justice by Michael Sandel, and How to Live by Sarah Bakewell (on Montaigne) all apply philosophical thinking to contemporary situations without requiring prior philosophy knowledge. Sandel's Justice was a Harvard course before it became a book, and it is specifically about the trade-offs modern societies make between liberty, equality, and virtue, using real cases from politics and law.

If you have read Plato, Aristotle, and the Stoics and want to go further, the next natural steps are Descartes's Meditations on First Philosophy (the foundation of modern epistemology), David Hume's Enquiry Concerning Human Understanding (the philosophical problem of causation and induction), and Immanuel Kant's Critique of Pure Reason (very hard but unignorable). For 20th-century philosophy, Ludwig Wittgenstein's Philosophical Investigations and Jean-Paul Sartre's Being and Nothingness are the two most influential texts, both genuinely difficult.