Who said "We must remain united in our cause."?

This quote is attributed to Velma Dinkley.

We must remain united in our cause. - Velma Dinkley

"We must remain united in our cause."

Velma Dinkley Leadership

"Jinkies!"

"My glasses! I can't see without my glasses!"

"Let's split up, gang."

"This is no accident. There are clues here."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"