The author describes and analyzes happy and painful moments in life that leave traces which are difficult to erase and can lead to erroneous determinations. It leads us with the hand— beginning with childhood and its joys, through the difficult age of adolescence and its main preoccupations, to an acquired maturity not so much by the analysis of the events but by a state of fatigue and fear of the adversity and injustice that victimizes the human being until death. It gives an apparent solution and a strong validation to productive beings, on whom rests and for whom our world still survives.