“If what you have done yesterday still looks big to you, you haven't done much today.”
“If what you did yesterday still looks big to you, you haven't done much today.”
“Don't worry about what you did yesterday, he said, often, worry about what you haven't done today.”
“Don't live to be judged for what you haven't done. Live to be judged for what you have done.”
“What you haven't done by thirty you're not likely to do. What you have done you'll do lots more.”
“It's better to regret what you have done than what you haven't.”