Skandapurana 5.263.30

5.263.30

labdhaṃ jñānaṃ kathamapi paṃḍito naiva pātayet..
nāhamasmi na mātā me na pitā na ca bāṃdhavaḥ..6.264.30..

A wise man should never cast down knowledge once it has somehow been attained. / I am not, nor is my mother, nor father, nor kinsman;