Once upon a time, there was a young man who worked at a factor his mentor an old technician taught him to talk less do more, and never stop developing his skills in every aspect of the factory's operations ten years later the old man retired and the young man became a technician himself he continued to do his work with the same dedication and diligence as he was taught one day he visited his mentor the old man saw that he seemed unhappy and asked what was troubling hi the young man sighed and poured his heart out I have been following your instructions.