فإن كنت قد أبصرت هذا فإنَّما يصدِّق قول المرءٍ ما هو فاعل
"If knowledge is not acted upon, it becomes a proof against you.
And you will not be excused for what you carry (i.e. of knowledge)
So if you come to realize this fact, then you will also realize
That the proof of a man's speech lies in his actions."
- Iqtidaa'ul Ilm al 'Amal, al Khateeb al Baghdaadee