Slokas from today’s lecture:

anāsaktasya viṣayān yathārham upayuñjataḥ
nirbandhaḥ kṛṣṇa-sambandhe yuktaṁ vairāgyam uchyate
prāpañchikatayā buddhyā hari-sambandhi-vastunaḥ
mumukṣubhiḥ parityāgo vairāgyaṁ phalgu kathyate
(Śrī Bhakti-rasāmṛta-sindhu: Pūrva-vibhāga, 2.255–256)

prāpañchikatayā buddhyā hari-sambandhi-vastunaḥ
mumukṣubhiḥ parityāgo vairāgyaṁ phalgu kathyate
BRS: 1.2.126

śrī hari-sevāya yāhā anukūla,
viṣaya baliyā tyāge haya bhula
‘āsakti-rahita’, ‘sambandha-sahita’,
viṣaya-samūha sakali ‘mādhava’
Śrīla Bhakti Siddhānta Saraswatī Ṭhākur

jīvera ‘svarūpa’ haya—kṛṣṇera ‘nitya-dāsa’
kṛṣṇera ‘taṭasthā-śakti’ ‘bhedābheda-prakāśa’
sūryāṁśa-kiraṇa, yaichhe agni-jvālā-chaya
svābhāvika kṛṣṇera tina-prakāra ‘śakti’ haya
CC: Madhya-līlā, 20.108–9

kṛṣṇa bhuli’ sei jīva anādi-bahirmukha
ataeva māyā tāre deya saṁsārādi-duḥkha
CC: Madhya-līlā, 20.117

tad viddhi praṇipātena paripraśnena sevayā
upadekṣyanti te jñānaṁ jñāninas tattva-darśinaḥ
BG: 4:34