Abul-Qaasim Al Junayd said:
When you desire to be honored by knowledge and to be ascribed to it and to be from its people before giving the knowledge what right it has over you (from action), its light becomes veiled from you and all that remains upon you is its mark and appearance. That knowledge is against you, not for you. This is since knowledge directs to implementing it. So if knowledge is not implemented in its due stages, its blessings depart.
Iqtidaa-ul-‘Ilm al-‘Amal | Al-Khateeb Al-Baghdaadee