Once his daughter Yun-ju asked: "Daddy, last time I got one question wrong and scored 96 %. This time I missed three and got 97 %. Does that mean I made progress or not?"
有一次女兒蕓如問他：「爸爸，我上次錯一題考九十六分，這次錯三題考九十七分，是進步還是退步？」