Who said "My work is never finished, but it is always worthwhile."?

This quote is attributed to Daenerys Targaryen.

My work is never finished, but it is always worthwhile. - Daenerys Targaryen

"My work is never finished, but it is always worthwhile."

Daenerys Targaryen Work

"I am the blood of Old Valyria. I am the dragon."

"A dragon is not a slave."

"I will take what is mine with fire and blood."

"The night is dark and full of terrors, but so is the day."

"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."