Bhagwad Gita
Chapter 6, Verse 42
अथवा योगिनामेव कुले भवति धीमताम्।
एतद्धि दुर्लभतरं लोके जन्म यदीदृशम्।।6.42।।
Or he takes his birth in a family of transcendentalists who are surely great in wisdom. Verily, such a birth is rare in this world.