The Bhagavad Gita (dated between the 2nd century BCE and 2nd century CE)
“There is no pleasure
for the doubting self –
not in this world,
nor in the world beyond.”
- This quote is from discourse/chapter 4, verse 40 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).