“Man is spirit. But what is spirit? Spirit is the self. But what is the self?
The self is a relation which relates itself to its own self, or it is that in the relation [which accounts for it] that the relation relates itself to its own self; the self is not the relation but [consists in the fact] that the relation relates itself to its own self.
Man is a synthesis of the infinite and the finite, of the temporal and the eternal, of freedom and necessity, in short it is a synthesis.
A synthesis is a relation between two factors. So regarded, man is not yet a self.“
Anti-Climacus / Søren Kierkegaard / 1849
Video material and dialogue at the beginning sampled from here.