Chapter IV Sloka 19

ySy sveR smarM-a> kams»LpvijRta>,
}anai¶dGxkmaR[< tma÷> pi{ft< buxa>

yasya sarve sam˜rambh˜× 
k˜masaðkalpavarjit˜× |
tam˜hu× paõýitaÕ budh˜× ( 4|19)||

He whose undertakings are all devoid of desires and (selfish) purposes and whose actions have been burnt by the fire of knowledge,-him the wise call a sage.
A sage performs actions only with a view to setting an example to the masses. Though he works, he does nothing since he has no selfish interests; his actions are burnt by the fire of wisdom which consists in the realisation of inaction in action. This realisation has come to him through the knowledge of the Self or Brahma-jnana. Brahma-Jnana is a mighty spiritual fire which consumes the results of all kinds of actions (Karmas), good and bad, and makes the enlightened sage totally free from the bonds of action. The sage who leads a life of perfect renunciation does only what is required for the bare existence of his body. ( Cf . III. 19; IV. 10; IV. 37)