ways in which they may be described as living in this state of bleak abandonment - including some that may seem just the opposite - and offering a much-discussed formula for the eradication of despair. With its penetrating account of the self, this late work by Kierkegaard was hugely influential upon twentieth-century philosophers including Karl Jaspers, Jean-Paul Sartre and Albert Camus. The Sickness unto Death can be regarded as one of the key works of theistic existentialist thought - a brilliant and revelatory answer to one man's struggle to fill the spiritual void. Danish title: 'Sygdommen til døden'.