Bhagavad Gita · Chapter 1: Arjuna's Despair

Bhagavad Gita 1.39

kathaṃ na jñeyamasmābhiḥ pāpādasmānnivartitum | kulakṣayakṛtaṃ doṣaṃ prapaśyadbhirjanārdana ||

why should we, who clearly see the wrong in destroying a family, not know enough to turn away from this sin, Janardana?

Modern context

'We see more clearly, so we must be the ones to stop.' The one who understands more does carry more responsibility. The harder question, which Krishna will take up, is whether stepping back would actually prevent the harm or only hand the field to those who see nothing.