Sanskrit: तस्मै स विद्वानुपसन्नाय सम्यक्प्रशान्तचित्ताय शमान्विताय ।  येनाक्षरं पुरुषं वेद सत्यं प्रोवाचतां तत्त्वतो ब्रह्मविद्याम्  इति मुण्डकोपनिषदि प्रथममुण्डके द्वितीयः खण्डः  
English: 13 To that pupil who has duly approached him, whose mind is completely serene and whose senses are controlled, the wise teacher should indeed rightly impart the Knowledge of Brahman, through which one knows the immutable and the true Purusha. 