nirviṇṇasya viraktasya
nirviṇṇasya viraktasya puruṣasyokta-vedinaḥ |
manas tyajati daurātmyaṁ cintitasyānucintayā ||
(Śrīmad Bhāgavatam: 11.20.23)
“The mind of a person who is disinterested, detached, cognizant of what has been said, and thoughtful, by means of contemplation gives up ill-naturedness.”