Who said "Fear is just an opportunity to prove yourself."?

This quote is attributed to Dax.

Fear is just an opportunity to prove yourself. - Dax

"Fear is just an opportunity to prove yourself."

Dax Fear

"I'm not sure what I'm more afraid of - that I'll never see Jadzia again, or that I will."

"Eight lifetimes of experience, and I'm still learning."

"Being joined changed me in ways I never expected."

"The symbiont remembers, but I have to live with the consequences."

"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."