Who said "We have to keep moving forward. That's all we can do."?

This quote is attributed to Glenn Rhee.

We have to keep moving forward. That's all we can do. - Glenn Rhee

"We have to keep moving forward. That's all we can do."

Glenn Rhee Perseverance

"I'm not gonna die. Not today."

"People are worth saving."

"I owe you my life. I won't forget that."

"We're survivors. That's what we do."

"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."