Who said "Sometimes you just have to believe in yourself."?

This quote is attributed to Ned Leeds.

Sometimes you just have to believe in yourself. - Ned Leeds

"Sometimes you just have to believe in yourself."

Ned Leeds Courage

"It's just the web-shooters, Mr. Stark. I designed them myself."

"I can't tell anyone about this. Not even my best friend."

"That's so cool! Oh man, this is insane!"

"I'm really interested in science and engineering."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."