MuU 3.1.4
प्रणो ह्येष यः सर्वभूतैर्विभाति विजानन् विद्वान् भवते नातिवादी । आत्मक्रीड आत्मरतिः क्रियावा- नेष ब्रह्मविदां वरिष्ठः
praṇo hyeṣa yaḥ sarvabhūtairvibhāti vijānan vidvān bhavate nātivādī | ātmakrīḍa ātmaratiḥ kriyāvā- neṣa brahmavidāṃ variṣṭhaḥ
Sanskrit for this text is pending; the English follows the translator's numbering.
For he is the Breath shining forth in all beings, and he who understands this becomes truly wise, not a talker only. He revels in the Self, he delights in the Self, and having performed his works (truthfulness, penance, meditation, &c.) he rests, firmly established in Brahman, the best of those who know Brahman.
Translated by F. Max Müller