The Mukhya Upaniṣads

Īśa · The Whole World in the Light of the Self

Mantra 11

विद्यां चाविद्यां च यस्तद्वेदोभयं सह ।अविद्यया मृत्युं तीर्त्वा विद्ययाऽमृतमश्नुते ॥ ११ ॥

In plain words

One who knows meditative knowledge and ritual action together crosses death through action and attains relative immortality through meditation.