Īśopaniṣad Mantra 10 · ईशोपनिषद् मन्त्र 10

अन्यदेवाहुर्विद्ययाऽन्यदाहुरविद्यया । इति शुश्रुम धीराणां ये नस्तद्विचचक्षिरे ॥

anyad evāhur vidyayā 'nyad āhur avidyayā | iti śuśruma dhīrāṇāṁ ye nas tad vicacakṣire ||

Meaning

One result, they say, comes of vidyā; another, of avidyā — thus have we heard from the wise who declared it to us.