Sanskrit

कर्मणो ह्यपि बोद्धव्यं बोद्धव्यं च विकर्मणः। अकर्मणश्च बोद्धव्यं गहना कर्मणो गतिः।।4.17।।

Summary

It is necessary to consider what is right action, what is wrong action, and what is inaction, for the law of action is mysterious.