The Concept of Anxiety
The Concept of Anxiety (): "A Simple Psychologically Orienting Deliberation on the Dogmatic Issue of Hereditary Sin", is a philosophical work written by Danish philosopher Søren Kierkegaard in 1844. The original 1944 English translation by Walter Lowrie (now out of print), had the title The Concept of Dread. "The Concept of Anxiety" was dedicated "to the late professor Poul Martin Møller". He used the pseudonym Vigilius Haufniensis (which, according to Kierkegaard scholar Josiah Thompson, is the Latin transcription for "the Watchman" of Copenhagen) for "The Concept of Anxiety".
Edifying Discourses in Diverse Spirits
Edifying Discourses in Diverse Spirits, also Upbuilding Discourses in Various Spirits was published on March 13, 1847, by Søren Kierkegaard. The book is divided into three parts just as "Either/Or" was in 1843 and many of his other discourses were. Kierkegaard had been working toward creating a place for the concepts of guilt and sin in the conscience of the single individual. He discussed the ideas generated by both Johann von Goethe and Friedrich Hegel concerning reason and nature. This book is his response to the ideas that nature and reason are perfect.