The Great Epic of the Bhārata dynasty 6.26.40

6.26.40

ajñaścāśraddadhānaśca saṃśayātmā vinaśyati |
nāyaṃ loko'sti na paro na sukhaṃ saṃśayātmanaḥ || 40 ||

(Even) this world is not for him who doth not perform sacrifice. Whence then the other, O best of Kuru's race? Thus diverse are the sacrifices occurring in the Vedas. Know that all of them result from action, and knowing this thou wilt be emancipated. The sacrifice of knowledge, O chastiser of foes, is superior to every sacrifice involving (the attainment of) fruits of action, for all action, O Partha, is wholly comprehended in knowledge. Learn that (Knowledge) by prostration, enquiry, and service. They who are possessed of knowledge and can see the truth, will teach thee that knowledge, knowing which, O son of Pandu, thou wilt not again come by such delusion, and by which thou wilt see the endless creatures (of the universe) in thyself (first) and then in me. Even if thou be the greatest sinner among all that are sinful, thou shalt yet cross over all transgressions by the raft of knowledge. As a blazing fire, O Arjuna, reduceth fuel to ashes, so doth the fire of knowledge reduce all actions to ashes. For there is nothing here that is so cleansing as knowledge. One who hath attained to success by devotion finds it without effort within his own self in time. He obtaineth knowledge, who hath faith and is intent on it and who hath his senses under control; obtaining knowledge one findeth the highest tranquillity in no length of time. One who hath no knowledge and no faith, and whose minds is full of doubt, is lost.

Neither this world, nor the next, nor happiness, is for him whose mind is full of doubt. Actions do not fetter him, O Dhananjaya, who hath cast off action by devotion, whose doubts have been dispelled by knowledge, and who is self-restrained. Therefore, destroying, by the sword of knowledge, this doubt of thine that is born of ignorance and that dwelleth in thy mind, betake to devotion, (and) arise, O son of Bharata.'