knock some sense into
US /nɑk sʌm sɛns ˈɪntuː/
UK /nɑk sʌm sɛns ˈɪntuː/

1.
far capire la ragione, far mettere la testa a posto
to make someone understand a situation and behave in a more sensible way, often by using strong words or actions
:
•
Someone needs to knock some sense into him before he makes a big mistake.
Qualcuno deve fargli capire la ragione prima che commetta un grosso errore.
•
My parents tried to knock some sense into me about my career choices.
I miei genitori hanno cercato di farmi capire la ragione riguardo alle mie scelte di carriera.