As a young man, Martin Heidegger was obsessed with the meaninglessness of existence. He spent his days pondering the abyss of nothingness, and his nights drinking beer in the local taverns of Freiburg.
His magnum opus, "Being and Time," is a dense and confusing tome that attempts to answer the question, "What is the meaning of life?" Spoiler: it's not what you think.
For a more in-depth look at Heidegger's philosophy, check out his subpages:
Or, if you're feeling particularly adventurous, check out our special "Heidegger's Absurd Adventure" subpage: