"That's just inexperience," states Yang Cheng-fu, recalling that it took him 20 or 30 years and he still can't be omniscient. Even he might not be able to find some extremely rarely used characters!
「這就是經驗」，楊正福說自己學了二、三十年，到現在功夫還不見得學得全，有些罕見的字，還不一定找得到呢！