Who said "I've learned that most fears aren't real."?

This quote is attributed to Peggy Olson.

I've learned that most fears aren't real. - Peggy Olson

"I've learned that most fears aren't real."

Peggy Olson Fear

"I'm not just a secretary. I'm a copywriter."

"You're thinking about this all wrong. It's not about what you want—it's about what they need."

"I didn't come this far to be somebody's girl."

"Every time we get a chance to do something, it matters."

"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."