Bhagwad Gita
Chapter 5, Verse 16
ज्ञानेन तु तदज्ञानं येषां नाशितमात्मनः।
तेषामादित्यवज्ज्ञानं प्रकाशयति तत्परम्।।5.16।।
When, however, one is enlightened with the knowledge by which nescience is destroyed, then his knowledge reveals everything, as the sun lights up everything in the daytime.