千慮一得 [ㄑㄧㄢ ㄌㄩˋ ㄧ ㄉㄜˊ; qian1 lu:4 yi1 de2]
  a thousand tries leads to one success (idiom, humble expr.); Even without any notable ability on my part, I may still get it right sometimes by good luck.
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  千慮一得
  せんりょいっとく
  せんりょのいっとく
  Expressions (phrases, clauses, etc.)
  Even a fool may sometimes come up with a good idea
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