Selections from The Sayings and Preaching of Amir al-Muminin Ali ibn Abi Talib (Peace Be Upon Him) Including His Replies to Questions and Maxims Expressed for Various Purposes.Translated by Sayyid Ali Reza
وَقَالَ (عليه السلام):
Amir al-mu'minin, peace be upon him, said:
رُبَّ عَالِمٍ قَدْ قَتَلَهُ جَهْلُهُ
Often the ignorance of a learned man ruins him
وَ عِلْمُهُ مَعَهُ لَا يَنْفَعُهُ .
while the knowledge he has does not avail him.
