Bhagavad-gītā 14.10
BG 14.10
Open the full passageरजस्तमश्चाभिभूय सत्त्वं भवति भारत । रजः सत्त्वं तमश्चैव तमः सत्त्वं रजस्तथा ॥१०॥
Sanskrit
rajas tamaś cābhibhūya sattvaṁ bhavati bhārata rajaḥ sattvaṁ tamaś caiva tamaḥ sattvaṁ rajas tathā
Translation
Sometimes the mode of goodness becomes prominent, defeating the modes of passion and ignorance, O son of Bharata. Sometimes the mode of passion defeats goodness and ignorance, and at other times ignorance defeats goodness and passion. In this way there is always competition for supremacy.