MuU 1.1.8
तपसा चीयते ब्रह्म ततोऽन्नमभिजायते । अन्नात् प्राणो मनः सत्यं लोकाः कर्मसु चामृतम्
tapasā cīyate brahma tato'nnamabhijāyate | annāt prāṇo manaḥ satyaṃ lokāḥ karmasu cāmṛtam
Sanskrit for this text is pending; the English follows the translator's numbering.
The Brahman swells by means of brooding (penance); hence is produced matter (food); from matter breath, mind, the true, the worlds (seven), and from the works (performed by men in the worlds), the immortal (the eternal effects, rewards, and punishments of works).
Translated by F. Max Müller