Tractatus Logico-Philosophicus

Philosophical Investigations

Ludwig Wittgenstein

1953

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Being and Time

Martin Heidegger

1927

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Phenomenology of Spirit

Georg Wilhelm Friedrich Hegel

1807

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Ethics

Baruch Spinoza

1677

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The Gay Science

Friedrich Nietzsche

1882

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On the Genealogy of Morals

Friedrich Nietzsche, Douglas Smith

1887

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