Who said "My path is one of endless improvement."?

This quote is attributed to Vegeta.

My path is one of endless improvement. - Vegeta

"My path is one of endless improvement."

Vegeta Work

"I am the prince of all Saiyans!"

"You dare challenge me? I am superior to you in every way!"

"A true warrior never surrenders."

"I will become the strongest in the universe."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."