“Life is too short to dwell on what might have been.”
“But lost chances are as much a part of life as chances taken, and a story cannot dwell on what might have been.”
“Life is too short to dwell on the crappy things of the past.”
“Life is too short to dwell in the negativity all the time.”
“It was not his habit to dwell on what might have been but what could never be.”
“Life's too short to worry about the little things. Enjoy what you have today, not what you might get tomorrow”