"Master, I have been thinking about the phenomenon TIME."
"I am sure you have better things to do, and more fruitful than the fruitless thinking too."
"I was not so much thinking of time itself but of what man makes of it."
"No man kan make anything of it."
"Indeed, Master. We all know that time is the only part of Reality about which all world-citizens know just as much as anybody else, namely nothing. Time is the only UNTOUCHABLE aspect of Reality. It cannot be experimented with, cannot be observed as all other aspects of Reality like space, mass, energy, it can only be known to exist, to have been added to, to the already passed time, and there it stops. And this mere speck of knowledge is shared by everybody, children included. Why, then, are there people who write books about time Master?"
"Indeed, Bergson, Galileo, Einstein and so on, could not have known more about time than Herodotus or Polybius or you or your next door neighbour. The only change that has taken place, IN TIME, is an improvement of the artificial production of EVENTS, in order to get a more precise idea of the passing of time. Water-clocks, calendars, pendulums, electronic spring/mass systems, Cesium atomic vibrations, and so on, they are merely artificial improvements of what every child knows, 'that SOME time has passed'. One can write a book about such systems or about one of them, yet, it does not discuss time itself. No book can tell you more about time than you do not already know (plus 5 milliard others), so don't you see that thinking about time is useless?"