Who said "Sometimes you have to try and try again"?

This quote is attributed to Big Bird.

Sometimes you have to try and try again - Big Bird

"Sometimes you have to try and try again"

Big Bird Perseverance

"I'm very big, but I'm still learning something new every day."

"Being different is what makes you special."

"I like to help my friends, even when it's hard."

"Every day is a chance to be better than yesterday."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."