बृहदारण्यकवार्तिक - दीपः

ननु दीपः स्वमात्मानं स्वात्मनैवावभासयन् ।
दृष्टो दीपप्रकाशार्थं न हि दीपांतराहृतिः ॥

- बृहदारण्यकवार्तिक

nanu dIpaH svAtmAnaM sva Atmanaiva avabhAsayan ।
dRuShTo dIpaprakAshArthaM na hi dIpAntara AhRutiH ॥

- bRuhadAraNyaka vArtika

A lamp glows by itself. One does not need some other light to look for a lamp. Virtues of noble men are similar. They stand for themselves without any need for endorsements.

- Bruhadaranyakavartika