Why Being Is Philosophy's Core Question

On Martin Heidegger's "Letter on Humanism" (1949).

What's our place in the world? What is it, really, to be human? Heidegger thought that being human hinges on having a proper relationship to Being, which is more basic than particular beings like people and tables and such, yet it being so close, Heidegger thinks it's hardest to see, and easy to be distracted from.

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