Wilder on T-day
A good quote from Thornton Wilder (hat tip: C-J)
"We can only be said to be alive in those moments when our hearts are conscious of our treasures."
I think it was Goethe who said, paraphrasing, that failing to live is only an early death.
Putting the two together, if one fails to have gratitude, then the result is temporal and eventually eternal death.