Who said "Fear is only as powerful as we allow it to be."?

This quote is attributed to Missandei.

Fear is only as powerful as we allow it to be. - Missandei

"Fear is only as powerful as we allow it to be."

Missandei Fear

"I am Missandei of Naath, interpreter and advisor to the Dragon Queen."

"Daenerys Targaryen chose to free us, not because she needed us, but because it was right."

"Knowledge is power, but wisdom is knowing how to use it."

"I have served many masters, but I chose to serve the Mother of Dragons."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."