Who said "It is well to be up and doing."?

This quote is attributed to Diogenes Laërtius.

It is well to be up and doing. - Diogenes Laërtius

"It is well to be up and doing."

Diogenes Laërtius Work

Historian Biographer Ancient Greece

"The man who is not afraid of the sea will soon be drowned, for he will be going out on a day he shouldn't."

"It is not that the man has failed, but that he aimed at nothing and succeeded."

"Know yourself."

"The foundation of every state is the education of its youth."

"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."