Bhagavad Gita 3.39
आवृतं ज्ञानमेतेन ज्ञानिनो नित्यवैरिणा।
कामरूपेण कौन्तेय दुष्पूरेणानलेन च।।3.39।।
Avritam gyanametena gyanino nityavairina
Kamarupena kaunteya dushpurenanalena cha
Simple meaning, written by AIKnowledge is covered by this constant enemy of the wise, which takes the form of desire, O son of Kunti, and which, like fire, can never be satisfied.