I got into it, and then I realized that with only strength, you can't make it. I didn't know how to conserve energy when I was carrying things like refrigerators or TVs. Only after I learned did the work become easier. "
後來他體會出用背力比用手勁省力，而且也不會擋住視線、阻礙行動，便開始學習用背來負重物。