„From my early youth, since I attained the age of puberty before I was twenty, until the present time when I am over fifty, I have ever recklessly launched out into the midst of these ocean depths, I have ever bravely embarked on this open sea, throwing aside all craven caution; I have poked into every dark recess, I have made an assault on every problem, I have plunged into every abyss, I have scrutinized the creed of every sect, I have tried to lay bare the inmost doctrines of every community. All this have I done that I might 68 distinguish between true and false, between sound tradition and heretical innovation.“
— Abu Hamid al-Ghazali Persian Muslim theologian, jurist, philosopher, and mystic 1058 - 1111
Whenever I meet one of the Batiniyah, I like to study his creed; whenever I meet one of the Zahiriyah, I want to know the essentials of his belief. If it is a philosopher, I try to become acquainted with the essence of his philosophy; if a scholastic theologian I busy myself in examining his theological reasoning; if a Sufi, I yearn to fathom the secret of his mysticism; if an ascetic (muta'ahhid) , I investigate the basis of his ascetic practices; if one ofthe Zanadiqah or Mu'attilah, I look beneath the surface to discover the reasons for his bold adoption of such a creed.
The Deliverance from Error https://www.amazon.com/Al-Ghazalis-Path-Sufism-Deliverance-al-Munqidh/dp/1887752307, p: 20-21