Verse
श्रेयान्द्रव्यमयाद्यज्ञाज् ज्ञानयज्ञः परन्तप ।सर्वं कर्माखिलं पार्थ ज्ञाने परिसमाप्यते ॥
The sacrifice of knowledge, O Parantapa, is greater than any material sacrifice. Knowledge is that in which all this action culminates (not any lower knowledge, but the highest self-knowledge, and God-knowledge), O Partha!
Gītā 4·33