“By far the most prominent thinker of the 19th century.” Ludwig Wittgenstein

Referring to his role as a writer, the Danish philosopher Søren Kierkegaard writes: “[...] as far as the concept of existence and the concept of Christianity are concerned, I act like a spy serving a higher service, that of an idea. I have nothing new to proclaim, nor the authority to proclaim it, I operate not openly but secretly [...] I am like a spy who informs on illegal activities, frauds, and suspicious affairs, one who does not cease to observe while being under the strictest surveillance [...]”

Søren Kierkegaard, known as the Spy of God, carefully observes the religious establishment of his country in order to clarify, for the ordinary person, the image of the true Christian, redefining the fundamental concepts of interiority and faith.

“There is no passion in wisdom. Kierkegaard, however, calls faith a passion.” Ludwig Wittgenstein

The book presents the evolution of the philosopher-inspector's personality from his early writings to his latest journals. Many of the texts are translated for the first time into Greek.