Even the wise are confused about what is action and what is inaction. Therefore, I shall clearly explain what is action, knowing that one shall be liberated from the evil (of birth and death).

Even the wise are confused about what is action and what is inaction.

The one who sees inaction in action, and action in inaction, is a wise person.

Perform your obligatory duty, because action is indeed better than inaction.

A man who sees action in inaction and inaction in action has understanding among men and discipline in all action he performs.

Thou hast power only to act not over the result thereof. Act thou therefore without prospect of the result and without succcumbing to inaction
(
The translation follows thus

Karmani ave adhikars te
--you have the power to act only
ma phalesu kadachana
--you do not have the power to influence the result
ma karmaphal hetur bhoo
--therefore you must act without the anticipation of the result
ma sangostu akramani
--without succumbing to inaction
)