Chapter 13 · The Field and the Knower · Krishna said
Bhagavad Gita 13.35 — The eye of wisdom
क्षेत्रक्षेत्रज्ञयोरेवमन्तरं ज्ञानचक्षुषा। भूतप्रकृतिमोक्षं च ये विदुर्यान्ति ते परम् ॥
kṣetrakṣetrajñayorevamantaraṃ jñānacakṣuṣā | bhūtaprakṛtimokṣaṃ ca ye viduryānti te param ||
Meaning
Those who see with the eye of wisdom the difference between the field and its knower, and the way beings are freed from nature, reach the Supreme.