तद्विद्धि प्रणिपातेन परिप्रश्नेन सेवया।
उपदोक्ष्यन्ति ते ज्ञानं ज्ञानिनस्तत्वदर्शिनः।।
O Arjuna! For gaining knowledge from the philosophers and the experienced scholars, you will have to approach them with polite salutations, questioning and guru’s service. Then only they will guide you.