Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 17

Sanskrit:

सनकादय ऊचु:गुणेष्वाविशते चेतो गुणाश्चेतसि च प्रभो ।कथमन्योन्यसन्त्यागो मुमुक्षोरतितितीर्षो: ॥ १७ ॥

ITRANS:

sanakādaya ūcuḥguṇeṣv āviśate cetoguṇāś cetasi ca prabhokatham anyonya-santyāgomumukṣor atititīrṣoḥ

Translation:

The sages headed by Sanaka said: O Lord, people’s minds are naturally attracted to material sense objects, and similarly the sense objects in the form of desire enter within the mind. Therefore, how can a person who desires liberation, who desires to cross over activities of sense gratification, destroy this mutual relationship between the sense objects and the mind? Please explain this to us.

Purport:

As described above, as long as one is a conditioned soul the modes of material nature, manifested in the form of sense objects, constantly disturb the mind, and by their harassment one is deprived of the actual perfection of life.