není všechno zlato angolul

all that glitters is not gold▼(things that appear valuable or worthwhile might not actually be so)
phrase
[UK: ɔːl ðæt ˈɡlɪ.təz ɪz nɒt ɡəʊld] [US: ɔːl ˈðæt ˈɡlɪ.tərz ˈɪz ˈnɑːt ɡoʊld]