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:
لَا تَرَى الْجَاهِلَ
You will not find an ignorant person
إِلَّا مُفْرِطاً أَوْ مُفَرِّطاً.
but at one extreme or the other (i.e. a person who neglects or a person who exaggerates).