BG 4.16-18
"What is action, what inaction"? Even the wise are herein perplexed. Therefore I will declare to thee the action by knowing which thou shalt be loosed from evil. It is needful to discriminate action, to discriminate unlawful action, and to discriminate inaction; mysterious is the path of action. He who seeth inaction in action, and action in inaction, he is wise among men, he is harmonious, even while performing all action.