Yanamino内行看门道，外行看热闹
nèi háng kàn mén dao , wài háng kàn rè naoneihangkanmendao,waihangkanrenao
- while the connoisseur recognizes the artistry, the layman simply enjoys the show
Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences