sattvaḿ bhavati bhārata
rajaḥ sattvaḿ tamaś caiva
tamaḥ sattvaḿ 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.