महाभारत - शान्ति - पाप

उपाध्यायं पितरं मातरं च
    येऽभिद्रुह्यन्ते मनसा कर्मणा वा ।
तेषां पापं भ्रूणहत्याविशिष्टं
    तस्मान्नान्यः पापकृदस्ति लोके ॥

- महाभारत, शान्ति

upAdhyAyam pitaram mAtaram cha
    ye abhidRuhyante manasA karmaNA vA ।
teShAM pApam bhrUNa hatyA vishiShTam
    tasmAt na anyaH pApakRut asti loke ॥

- mahAbhArata, shAnti

The sin attributed to hurting teacher, father or mother - mentally or by actions is worse than killing a fetus. There is no sin more heinous than hurting those who gave you a life.

- Mahabharata, Shanti