Caitanya-caritāmṛta 19.212
śamo man-niṣṭhatā buddher iti śrī-bhagavad-vacaḥ tan-niṣṭhā durghaṭā buddher etāṁ śānta-ratiṁ vinā
[shamo man-nishthataa buddher iti shree-bhagavad-vachah tan-nishthaa durghataa buddher etaam shaanta-ratim vinaa]
Blended reading (Sanskrit + English inline)
śamo man-niṣṭhatā buddher iti śrī-bhagavad-vacaḥ tan-niṣṭhā durghaṭā buddher etāṁ śānta-ratiṁ vinā
“ ‘These are the words of the Supreme Personality of Godhead: “When one’s intelligence is fully attached to My lotus feet but one does not render practical service, one has attained the stage called śānta-rati, or śama.” Without śānta-rati, attachment to Kṛṣṇa is very difficult to achieve.’
My note
Source: vedabase.io