From a subjective point of view it seems that the existence and behavior of a single human being is of little importance. Except for those leaders, thinkers and scientists who really make a contribution towards the advancement (or devastation) of mankind, the vast majority of people, numbering in the billions, do not seem to make any difference in terms of the future and wellbeing of our society. If not for the fact of their numbers, they would have stayed unnoticed and the world would not have missed them if they would not have been born.