Who said "I am capable of achieving what others only imagine."?

This quote is attributed to Dexter.

I am capable of achieving what others only imagine. - Dexter

"I am capable of achieving what others only imagine."

Dexter Imagination

"What does this button do?"

"I must focus on my work."

"Science rules!"

"Dee Dee, get out of my laboratory!"

"Imagination is more powerful than knowledge."

"The world is full of wonders if you know where to look."

"You have the imagination of a child, Lucy"

"The world is full of mysteries waiting to be solved."