Bhagavad Gita 14.10
O Prince! Purity prevails when passion and ignorance are overcome; passion, when purity and ignorance are overcome; and ignorance when it is overcome by purity and passion.
रजस्तमश्चाभिभूय सत्त्वं भवति भारत।रजः सत्त्वं तमश्चैव तमः सत्त्वं रजस्तथा॥rajastamaścābhibhūya sattvaṃ bhavati bhārata|rajaḥ sattvaṃ tamaścaiva tamaḥ sattvaṃ rajastathā||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).