Bhagavad Gita Chapter 1, Verse 45

कथं न ज्ञेयमस्माभिः पापादस्मान्निवर्तितुम् | कुलक्षयकृतं दोषं प्रपश्यद्भिर्जनार्दन ||

kathaṁ na jñeyam asmābhiḥ pāpād asmān nivartitum kula-kṣaya-kṛtaṁ doṣaṁ prapaśyadbhir janārdana

O Krishna, why should we not know to turn back from this sin, we who clearly see the wrong in destroying families?

Arjuna's moral conclusion: Unlike those blinded by greed (v.44), WE can clearly see. 'Prapaśyadbhiḥ'—clearly seeing. 'Kula-kṣaya-kṛtaṁ doṣam'—the fault in family destruction. 'Kathaṁ na jñeyam'—how could we NOT know? This is rhetorical: when you clearly see consequences, you DO know. 'Pāpād asmān nivartitum'—to turn ourselves away from harm. The reasoning: Others can't see because greed blinds them, but WE can see clearly—so how can we NOT act to turn away? This teaches that clear sight creates moral obligation. When you SEE harm, UNDERSTAND consequences, and your judgment isn't compromised, you can't claim ignorance. The principle: seeing is knowing, and knowing demands action according to that knowledge.