Who said "My existence is a testament to the power of persistence."?

This quote is attributed to Plankton.

My existence is a testament to the power of persistence. - Plankton

"My existence is a testament to the power of persistence."

Plankton Perseverance

"I'm ready to take over the world!"

"The secret formula is mine!"

"I'm going to steal the Krabby Patty secret formula and become rich!"

"SpongeBob, you're no match for my genius!"

"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."