Perhaps Big D and Little D were lucky to come back from their trips unscathed. "We sincerely hope there still is a light at the end of the tunnel," they write in closing. But to avoid later regrets, to resolutely resist that tunnel's temptations altogether is surely the wiser course.
大小 D 或許是誤入險境又安然復返的幸運者，但正如書中所說「希望隧道的那一頭依然有光」；與其希望，不如堅定決心，抗拒隧道的誘惑，以免後悔莫及吧。