Who said "Gratitude opens your eyes to what you already have."?

This quote is attributed to Lieutenant Dan.

Gratitude opens your eyes to what you already have. - Lieutenant Dan

"Gratitude opens your eyes to what you already have."

Lieutenant Dan Gratitude

"Life is like a box of chocolates, you never know what you're gonna get."

"I'm not a smart man, but I know what love is."

"You have to do the best with what God gave you."

"My legs may be gone, but my spirit is not."

"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"