He who shirks action does not attain freedom; no one can gain perfection by abstaining from work. Indeed, there is no one who rests for even an instant; every creature is driven to action by his own nature.
Waters from many rivers continually flow into the ocean but the ocean never overfills. In a like manner, desires and attachments constantly flow into the mind of the Illuminated One, but he or she , like the ocean in its deepest depths, is totally still and never disturbed.
Source: Bhagavad Gita - chapter 2: the Path of Knowledge - verse 70