Who said "Gratitude for what we have is the antidote to regret."?

This quote is attributed to Dax.

Gratitude for what we have is the antidote to regret. - Dax

"Gratitude for what we have is the antidote to regret."

Dax Gratitude

"I'm not sure what I'm more afraid of - that I'll never see Jadzia again, or that I will."

"Eight lifetimes of experience, and I'm still learning."

"Being joined changed me in ways I never expected."

"The symbiont remembers, but I have to live with the consequences."

"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"