yadi hi satyāmanyathākaraṇecchāyāṃ vedadhvaniranyathā na pravarteta, anyathā karaṇecchā cotpādayituṃ na śakyate, tadā vedapāṭhāder anyathātvakaraṇaśaktiḥ puṃsaḥ siddhyet
If indeed when there exists a desire to alter [it], the sound of the Veda would not change differently, and if the desire to alter could not be produced, only then would man's inability to alter the Vedic recitation etc. be established.