Ramayana
कर्मणासूचयात्मानं न विकत्थितुमर्हसि । पौरुषेणतुयोयुक्तस्सतुशूरइतिस्मृतः ॥ ६-७१-५९
"Reveal yourself by action not by indication. You do not deserve it. He who is with prowess is a right hero." ॥ 6-71-59॥
english translation
karmaNAsUcayAtmAnaM na vikatthitumarhasi । pauruSeNatuyoyuktassatuzUraitismRtaH ॥ 6-71-59
hk transliteration by Sanscript