annars agar han dig när han blir stor meaning in English

spare the rod and spoil the child▼(if one does not discipline a child he or she will never learn respect or humility)
phrase
[UK: speə(r) ðə rɒd ənd spɔɪl ðə tʃaɪld] [US: ˈsper ðə ˈrɑːd ænd ˌspɔɪl ðə ˈtʃaɪld]