Who said "Gratitude is the healthiest of all human emotions."?

This quote is attributed to Pollock, John.

Gratitude is the healthiest of all human emotions. - Pollock, John

"Gratitude is the healthiest of all human emotions."

Pollock, John Gratitude

Philosopher American 1940–2015

"Every child is an artist. The problem is how to remain an artist once we grow up."

"The chief enemy of creativity is good sense."

"Art washes away from the soul the dust of everyday life."

"Creativity takes courage."

"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"