“O Lord, I am working hard in this field, and the field of my labours is my own self. I have become a problem to myself, like the land, which a farmer works only with difficulty and at the cost of much sweat. For I am not now investigating the tracts of heaven, or measuring the distance of the stars, or trying to discover how the earth hangs in space. I am investigating myself, my memory, my mind” 

Saint Augustine