The Bhagavad Gita (dated between the 2nd century BCE and 2nd century CE)
“One should have watchful insight
into wrong action,
and watchful insight
The way of action
is hard to fathom.”
- This quote is from discourse/chapter 4, verse 17 of the Bhagavad Gita (a Hindu scripture included in book 6 of the epic poem, the Mahabharata). The translation used here is by Laurie L. Patton (Penguin Classic, 2014).