I'm trying to gain a broad knowledge of Philosophy through the ages. Here is the bare-bones reading list I have assigned myself:

> Early Greek Philosophers - Penguin Classics
> The Histories - Herodotus
> Republic - Plato
> the Politics - Aristotle

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> Meditations on First Philosophy - Descartes
> Ethics - Spinoza
> A Treatise on Human Nature - David Hume
> A Critique of Pure Reason - Kant
> Phenomenology of Spirit - Hegel
> The Birth of Tragedy, Thus Spoke Zarathustra - Nietzsche
> The Wealth of Nations - Adam Smith
> Kapital - Marx


I should say that I am more interested in Politics than philosophy itself, so I am reading for those ends. Are there any titles I should add or omit?