maar niet zijn streken angolul

a leopard cannot change its spots▼(one cannot change one's own nature)
phrase
[UK: ə ˈle.pəd ˈkæn.ɒt tʃeɪndʒ ɪts spɒts] [US: ə ˈle.pərd ˈkæn.ɑːt ˈtʃeɪndʒ ˈɪts ˈspɑːts]