Mahabharata 12.237.11

येन पूर्णमिवाकाशं भवत्येकेन सर्वदाशून्यं येन जनाकीर्णं तं देवा ब्राह्मणं विदुः

yena pūrṇamivākāśaṃ bhavatyekena sarvadāśūnyaṃ yena janākīrṇaṃ taṃ devā brāhmaṇaṃ viduḥ

Our plain-language meaning of this verse is waiting for scholar review.