Mahābhārata Bhīṣma Parva 5.22

Mahābhārata Vana-parva 313.116

Mahābhārata Vana Parva 313.117

Mahābhārata Dān-dharma Chapter 149 Viṣṇu-sahasra-nāma-stotra 127.92.75

Mahābhārata Udyoga Parva 71.4

Hitopadeśa

Manu Saṁhitā 9.3

Manu Saṁhitā

Nārada Pañcarātra

Rāmāyaṇa

Ṛk-saṁhitā 1.22.20

Hare Kṛṣṇa! These verses from the Mahābhārata, Hitopadeśa, Manu Saṁhitā, Nārada Pañcarātra, Rāmāyaṇa, and Ṛg Veda emphasize key principles: the limits of mundane logic in understanding transcendental reality, the astonishing nature of material existence and death, the importance of following the path of great souls (mahājanas), the prediction of Śrī Caitanya Mahāprabhu's appearance, the etymology of “Kṛṣṇa” as the all-attractive source of spiritual pleasure, the common animalistic tendencies of eating/sleeping/fearing/mating, the necessity of dharma (spiritual life) to rise above animal existence, and the supreme position of Lord Viṣṇu's lotus feet.

If you'd like purports excerpts from Śrīla Prabhupāda added for any of these, more verses from the Mahābhārata or other Vedic sources in the same format, or verses from another grantha, just let me know!