Sanskrit: पुरुष एवेदं विश्वं कर्म तपो ब्रह्म परामृतम् ।  एतद्यो वेद निहितं गुहायांसोऽविद्याग्रन्थिं विकिरतीह सोम्य  इति मुण्डकोपनिषदि द्वितीयमुण्डके प्रथमः खण्डः  
English: 10 The Purusha alone is verily the universe, which consists of work and austerity. O my good friend, he who knows this Brahman-the Supreme and the Immortal, hidden in the cave of the heart-cuts asunder even here the knot of ignorance.