Philosophical Fragments is a collection of essays devoted to personal exploration. The person in question is Soren Kierkegaard. While he positions himself as a teacher, he also reflects a humility of recognized limitation. He desires to also be an equal alongside his student because he admits that he is no more qualified than the next to teach because he will do so imperfectly. Lacking much of the rigid structure of other collections of his writings, this book is more a pet project through which Kierkegaard vents some of his own insecurities and unscientific theories.
The collection marries reason with religion -- the ultimate goal being the understanding of Truth. Kierkegaard isn't satisfied with Socrates' finite truth but desires a more complete, eternal truth, one which depends upon an admission of the learner's own limitations. This is where he appeals to Faith as a means of evoking forgotten measures of understanding from birth. Kierkegaard outlines his understanding of the significance of the incarnation of God as a function of learning. He describes God's love as an invitation to learn.