Aristotle
Aristotle was an ancient Greek philosopher whose ethics asks what it means for a human life to go well through activity, character, practical judgment, relationships, and favorable conditions.
Meet Aristotle →Explore the collection
Philosophers and Their Core Ideas
Meet a selective group of thinkers whose ideas illuminate the questions explored throughout Thinking Paths. Each profile introduces central themes, historical context, influential arguments, and important limits or disputes, offering a place to begin rather than a complete account of the philosopher or the philosophical canon.
Confucius
Confucius was an ancient Chinese teacher and thinker, traditionally dated 551–479 BCE, whose dialogues emphasize learning, moral cultivation, humane relationships, ritual practice, appropriate judgment, and leadership by ethical example.
Meet Confucius →David Hume
David Hume was an eighteenth-century Scottish philosopher who examined how experience, habit, feeling, and social life support beliefs about causation, the self, agency, and morality.
Meet David Hume →Friedrich Nietzsche
Friedrich Nietzsche was a nineteenth-century German philosopher and cultural critic who investigated how values arise, whose forms of life they support, and whether inherited ideals can withstand historical and psychological scrutiny.
Meet Friedrich Nietzsche →Immanuel Kant
Immanuel Kant was an eighteenth-century philosopher whose moral philosophy asks how rational agents can bind themselves through universal principles while respecting every person as an end.
Meet Immanuel Kant →John Locke
John Locke was a seventeenth-century English philosopher whose work on knowledge, personal identity, natural rights, property, consent, and toleration helped shape later debates about the self and legitimate government.
Meet John Locke →John Rawls
John Rawls was a twentieth-century political philosopher who asked which principles free and equal persons could accept for the basic institutions of society under fair conditions of choice.
Meet John Rawls →John Searle
John Searle is a philosopher of language and mind whose work examines how utterances perform actions, how mental states are about things, and whether computation is sufficient for understanding.
Meet John Searle →John Stuart Mill
John Stuart Mill was a nineteenth-century British philosopher and political economist who connected individual liberty and experimentation with a consequentialist concern for human well-being and social progress.
Meet John Stuart Mill →Plato
Plato was an ancient Greek philosopher who used dialogues to investigate how people should live, what knowledge requires, and how justice connects individual character with political institutions.
Meet Plato →René Descartes
René Descartes was a seventeenth-century French philosopher, mathematician, and natural philosopher who used disciplined doubt to search for secure knowledge and developed an influential distinction between thinking mind and extended body.
Meet René Descartes →Simone de Beauvoir
Simone de Beauvoir was a twentieth-century French philosopher and writer who examined how freedom is lived through bodies, relationships, history, unequal power, and conditions no person chooses alone.
Meet Simone de Beauvoir →From the same publisher
Further exploration
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AI Wisdom Council
Explore AI-guided conversations inspired by major thinkers (opens in a new tab)Interactive AI simulations inspired by philosophers—not the historical thinkers themselves or primary sources.