रामायण - बाल - तेजः

धिग्बलं क्षत्रियबलं ब्रह्मतेजो बलं बलं ।
एकेन ब्रह्मदण्डेन सर्वास्त्राणि हतानि मे ॥

- रामायण, बाल

dhik balam kShatriya balam brahma teho balam balam ।
ekena brahma daNDena sarva astrANi hatAni me ॥

- rAmAyaNa, bAla kANDa

Disgrace on all the strengths that is derived from muscle power. It is the brilliance of knowledge that is more powerful. By his one master stroke, all my weapons are destroyed. (This was uttered by Vishvamitra after losing to Vasishta in a fight)

- Ramayana, Bala Kanda