Ishavasya upanishad verse 11

विद्याञ्चाविद्याञ्च यस्तद्वेदोभयं सह।
अविद्यया मृत्युं तीर्त्वा विद्ययाऽमृतमश्नुते ॥

Link

vidyāñcāvidyāñca yastadvedobhayaṁ saha |
avidyayā mṛtyuṁ tīrtvā vidyayā'mṛtamaśnute ||

- vidyāñcāvidyāñca yastadvedobhayaṁ saha : He who knows both the (spiritual transformation by) knowledge  and the (supramental transformation by entering the) ignorance together (as the same divine work)
- avidyayā mṛtyuṁ tīrtvā : crosses death (which is a challenge in lower hemisphere of mind-life-matter) by (supramental transformation of) ignorance and 

- vidyayā'mṛtamaśnute : Attains immortality (which is the nature of upper hemisphere of existence-force-harmony) by (spiritual transformation through) knowledge