have a good head on your shoulders
US /hæv ə ɡʊd hɛd ɑn jʊər ˈʃoʊl.dərz/
UK /hæv ə ɡʊd hɛd ɑn jʊər ˈʃoʊl.dərz/

1.
avere la testa sulle spalle, essere assennato
to be sensible and intelligent
:
•
She really has a good head on her shoulders, always making smart decisions.
Lei ha davvero la testa sulle spalle, prendendo sempre decisioni intelligenti.
•
Even at a young age, he seemed to have a good head on his shoulders.
Anche in giovane età, sembrava avere la testa sulle spalle.