Who said "Change is the constant in the universe."?

This quote is attributed to Dexter.

Change is the constant in the universe. - Dexter

"Change is the constant in the universe."

Dexter Change

"What does this button do?"

"I must focus on my work."

"Science rules!"

"Dee Dee, get out of my laboratory!"

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."