Valmiki Ramayana 1.7.5
सुयज्ञो अपि अथ जाबालिः काशय्पो अपि अथ गौतमः ।मार्कण्डेयः तु दीर्घायुः तथा कात्यायनो द्विजः॥
suyajño api atha jābāliḥ kāśaypo api atha gautamaḥ |mārkaṇḍeyaḥ tu dīrghāyuḥ tathā kātyāyano dvijaḥ ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book