H e who spares his rod hates his son, but he who loves him disciplines diligently and punishes him early.
مَنْ يَمنَعُ عَصا التَّأدِيبِ عِنْ ابْنِهِ فَإنَّهُ يَكرَهُهُ، وَمَنْ يُحِبُّ ابْنَهُ يَسْعَى إلَى تأديبِهِ.