Japanese

Proverb

ひゃくにちのせっぽうへひとつ ‎(romaji hyaku nichi no seppō he hitotsu)

1. 百日の説法屁一つ: “a hundred days of sermonizing, one fart” → a metaphor for how extreme effort something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds