Who said "It's important to believe in yourself."?

This quote is attributed to Joey Tribbiani.

It's important to believe in yourself. - Joey Tribbiani

"It's important to believe in yourself."

Joey Tribbiani Strength

"How you doin'?"

"It's not a lie if you believe it."

"I'm not great at the advice. Can I interest you in a sarcastic comment?"

"Could I BE any more of a mess?"

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."