A lecturer enters the lecture room, then takes out a domino box that has been numbered consecutively. He then enforced the entire domino one by one. The students thought surely the lecturer wanted to show the domino effect. They pay close attention. "You look carefully, I'll drop the first domino and see what happens." Then the front part is dropped. Of course everyone in the room knew that what happened next was that all of the dominoes would fall in sequence from front to back. And indeed that is what happened. "This domino intentionally write numbers, to show that actually each of these dominoes represents our age," As is the custom of the lecturer, that day he also explained with a metaphor, "So you remember, what happened to us this year is the result of last year's deeds. And what this year will determine will be what we will be in the coming year. Because our entire age series is interconnected, like this domino!" Not enough with just words, he then grabbed a marker and wrote in large letters on the board, Today is yesterday's effect. And today is tomorrow's cause. The students realize that a very valuable lesson on that day, that the future is determined by our attitude today.
