The River of Ideas
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The cast of the voyage

Thirty great thinkers

Two and a half thousand years of philosophy, told as a route — each thinker a stop with a concise account, their own words, and where to read more.


Ancient Greece

600 BC – 200 AD

In a handful of Greek cities, people stopped explaining the world with myths and started asking for reasons. In two centuries they invented physics, ethics, logic and politics — and the questions they raised are still open today. Explore Ancient Greece →

The Middle Ages

400 – 1400

For a thousand years, philosophy in Europe wrestled with a single problem: how to fit reason together with faith. Thinkers like Augustine and Aquinas built vast systems trying to prove that the two need not collide. Explore The Middle Ages →

Early Modern

1400 – 1700

Printing, exploration and the new science shook every old certainty. Philosophers asked the question again from scratch — what can I actually know? — and split into rival camps of reason and experience. Explore Early Modern →

Reason was turned on authority itself. From Kant to Marx, Darwin to Freud, thinkers remade morality, history, biology and the mind — and handed us the modern world, for better and worse. Explore Enlightenment & 1800s →

Modern Times

1900 – now

With old certainties gone, the twentieth century asked what it means to be free, to find meaning, and to live honestly in a universe that began with a Big Bang. The voyage reaches our own time. Explore Modern Times →

Eastern Voices

6th century BC onward

A parallel current runs through ancient China and India. Laozi, the Buddha, Confucius, Mencius and Zhuangzi asked how to live well, govern justly and find peace — arriving at answers that both echo and challenge the Greeks. Explore Eastern Voices →

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