You can't teach an old dog new tricks
eːn ɡɑmməl hʉnn laːrər ɪkːa nyːa trɪks
In Norwegian En gammel hund lærer ikke nye triks.
This idiom is a direct translation and is commonly used in Norwegian culture.
Example
"Han kommer ikke til å forandre seg, en gammel hund lærer ikke nye triks."
