Name: Nahj al-Balagha
Author: Ali

“Maalik! You must create in your mind kindness, compassion and love for your subjects. Do not behave towards them as if you are a voracious and ravenous beast and as if your success lies in devouring them.
Remember, Maalik, that amongst your subjects there are two kinds of people: those who have the same religion as you have; they are brothers to you, and those who have religions other than that of yours, they are human beings like you. Men of either category suffer from the same weaknesses and disabilities that human beings are inclined to, they commit sins, indulge in vices either intentionally or foolishly and unintentionally without realizing the enormity of their deeds. Let your mercy and compassion come to their rescue and help in the same way and to the same extent that you expect Allah to show mercy and forgiveness to you.”

Ali book Nahj al-Balagha

Variant translation:
Awaken your heart to kindness and mercy for the people and love and tenderness for them. Never, never act with them like a predatory beast which seeks to be satiated by devouring them, for the people fall into two categories: they are either your brethren in faith or your kindred in creation.
Nahj al-Balagha, Letter 53: An order to Malik Al-Ashtar