لا تَنْظُرْ إِلَى مَنْ قَالَ وَانْظُرْ إِلَى مَا قَالَ
فَرُبَّ كَلِمَةٍ عَظِيمَةٍ مِنْ صَغِيرٍ
Do not look at who said it but what was said
For perhaps a great word comes from a small one
المصدر · Source: Nahj al-Balagha. Compiled by al-Sharif al-Radi