Bhagavad Gita 10.6

महर्षयः सप्त पूर्वे चत्वारो मनवस्तथा |
मद्भाव मनसा जात येषां लोक इमा: प्रजा:

Translation

The seven great Sages, the four great Saints before them, and the fourteen Manus, are all born from My mind. From them, all the people in the world have descended.