the cowl does not make the monk

English

the superficial trappings of something are unrelated to its true essence

Chinese:
Mandarin: 人不可貌相 (zh) (rén bùkě màoxiàng)
German: Kleider machen keine Leute
Greek: το ράσο δεν κάνει τον παπά (to ráso den kánei ton papá), τα ράσα δεν κάνουν τον παπά (ta rása den kánoun ton papá)
Hungarian: nem a csuha teszi a barátot/papot/szerzetest
Italian: l'abito non fa il monaco
Japanese: 馬子にも衣装 (ja)
Latin: cucullus non facit monachum, barba non facit philosophum, ^{(please verify)} habitus non facit monachum
Portuguese: o hábito não faz o monge (pt)
Spanish: el hábito no hace al monje