Bhagavad-gītā As It Is · Text 18.29
Knowledge, action, determination and happiness in the modes
बुद्धेर्भेदं धृतेश्चैव गुणतस्त्रिविधं शृणु ।
प्रोच्यमानमशेषेण पृथक्त्वेन धनञ्जय ॥ २९ ॥
buddher bhedaṁ dhṛteś caiva
guṇatas tri-vidhaṁ śṛṇu
procyamānam aśeṣeṇa
pṛthaktvena dhanañ-jaya
O winner of wealth, now please listen as I tell you in detail of the different kinds of understanding and determination, according to the three modes of material nature.
Read Śrīla Prabhupāda's purport on Vedabase.io