For 10 points, name this existentialist Danish philosopher who wrote Either/
In one work, this philosopher equated the Christian concept of sin with human despair, and in another, he introduced the "knight of infinite resignation" while elaborating variations on the story of Abraham's sacrifice of Isaac. In addition to The Sickness Unto Death and Fear and Trembling, he wrote a work including the diary of Johannes the Seducer compiled by Victor Eremita which contrasts the ethical and aesthetic ways of life. For 10 points, name this existentialist Danish philosopher who wrote Either/Or.
In one work, this philosopher equated the Christian concept of sin with human despair, and in another, he introduced the "knight of infinite resignation" while elaborating variations on the story of Abraham's sacrifice of Isaac.
Soren {Kierkegaard}