玩物喪志 [ㄨㄢˊ ㄨˋ ㄙㄤˋ ㄓˋ; wan2 wu4 sang4 zhi4]
  lit. trifling destroys the will (idiom); infatuation with fine details prevents one making progress
  excessive attention to trivia saps the will
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  玩物喪志
  がんぶつそうし
  noun (common) (futsuumeishi)
  forgetting one's serious objectives by becoming engrossed in trivial pursuits
  being distracted by trivial objects and losing sight of one's original goal
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