Manasara 69.13

69.13

tadevādhikaṃ mānaṃ cet pramāṇaṃ kartṛnāśanam
vedikāyāṃ vihīnaṃ cet karturdṛṣṭirdīnaṃ vrajet

If that same measure is excessive, the proportion brings destruction to the patron; / if deficient in the railing, the patron's vision will become impaired.