The gay science
by
Friedrich Nietzsche
1974, Vintage Books
Kierkegaard's The concept of dread
by
Søren Kierkegaard
1944, Princeton University Press
The denial of death.
by
Ernest Becker
,
Ernest Becker
1973, Free Press
Being and time.
by
Martin Heidegger
,
Martin Haidegger
,
Martin Haydegger
,
John Macquarrie
,
Edward S. Robinson
,
Friedrich-Wilhelm von Herrmann
1962, Harper