The only thing we have to fear is fear itself
In Yoruba Ohun kan ṣoṣo tí ó yẹ kí a bẹ̀rù ni ẹ̀rù fún ara rẹ̀
This is a direct translation of the original quote.
Example
"Ní àkókò ìṣòro, ó rántí: 'Ohun kan ṣoṣo tí ó yẹ kí a bẹ̀rù ni ẹ̀rù fún ara rẹ̀'."