"Remember, today is the tomorrow you worried about yesterday."
Was it worth it? Was all yesterday's worrying about today worth it? No. The worry is fear, and it is worse than what we worry about. It depreciates the moments we spend with it.
Here's a few more cool perspective expanding quotes:
"Yesterday is but a dream, tomorrow but a vision. But today well lived makes every yesterday a dream of happiness, and every tomorrow a vision of hope. Look well, therefore, to this day."
"An economist is an expert who will know tomorrow why the things he predicted yesterday didn't happen."
"It is difficult to say what is impossible, for the dream of yesterday is the hope of today and the reality of tomorrow."
"There are two days in the week on which I never worry; One is yesterday and the other is tomorrow."
"Yesterday is a canceled check: Forget it. Tomorrow is a promissory note: Don't count on it. Today is ready cash: Use it!"
"Today's opportunities erase yesterday's failures."