屁股決定腦袋 [－－决－脑－]

Jyutping
Pinyin pì gu jué dìng nǎo dai

Definitions (CC-CEDICT)
  1. lit. the butt governs the head (idiom)
  2. fig. where one stands depends on where one sits
  3. one's views are shaped by one's circumstances
Examples (Wiktionary)
  1. Mandarin
    屁股决定脑袋
    屁股決定腦袋
    pì gu jué dìng nǎo dai
    • (proverb) People's bias influences their thoughts.