English proverbs, idioms and expressions related to this theme.
You can take the boy out of the country but you can't take the country out of the boy.
means that
An ape is an ape, a varlet is a varlet, though they be clad in silk or scarlet.
expresses that
God made the country and man made the town
meaning
Still waters run deep.
indicates that
You cannot wash charcoal white.