Søren Kierkegaard
Søren Aabye Kierkegaard was a Danish philosopher, Lutheran theologian, poet, social critic, and religious author who is widely considered to be the first existentialist philosopher. He wrote critical texts on organized religion, Christianity, morality, ethics, psychology, love, and the philosophy of religion, displaying a fondness for metaphor, irony, and parables.

Books
- Kierkegaard's Journals and Notebooks, Volume 1: Journals AA-DD
- Kierkegaard's Journals and Notebooks, Volume 2: Journals EE-KK
- Kierkegaard's Writings, V, Volume 5: Eighteen Upbuilding Discourses
- Kierkegaard's Writings, XXI, Volume 21: For Self-Examination / Judge For Yourself!
- The Lily of the Field and the Bird of the Air: Three Godly Discourses
- The Lily of the Field and the Bird of the Air: Three Godly Discourses