Isha Upanishad Verse 11
Sanskrit Verse
विद्याञ्च अविद्याञ्च यस्तद् वेदोभयं सह ।
अविद्यया मृत्युं तीर्त्वा विद्ययामृतमश्नुते ॥११॥
Transliteration
vidyāṁ cāvidyāṁ ca yastadvedobhayaṁ saha,
avidyayā mṛtyuṁ tīrtvā vidyayāmṛtamaśnute.
Sri Aurobindo's translation
He who knows That as both in one, the Knowledge and the Ignorance, by the Ignorance crosses beyond death and by the Knowledge enjoys Immortality.

Muni's Play