Ramayana
येषां नोपरि नाधस्तान्न तिर्यक्सज्जते गतिः । न च कर्मसु सीदन्ति महत्स्वमिततेजसः ॥ ५-३९-३६
'Their course cannot be impeded either upward, or downward or right or left. They are indeed very brilliant and would never fail in any task. ॥ 5-39-36॥
english translation
yeSAM nopari nAdhastAnna tiryaksajjate gatiH । na ca karmasu sIdanti mahatsvamitatejasaH ॥ 5-39-36
hk transliteration by Sanscript