Who said "Don't cry because it's over. Smile because it happened."?

This quote is attributed to Christopher Peterson.

Don't cry because it's over. Smile because it happened. - Christopher Peterson

"Don't cry because it's over. Smile because it happened."

Christopher Peterson Gratitude

Psychologist American 1950–2012

"Other people matter."

"The good life is not a static state. It is a direction."

"What you do with your life is up to you. Fish for trout, accept it."

"Positive psychology takes seriously the fact that people want more than just to not be miserable."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"