Who said "Gratitude to those who don't ask questions."?

This quote is attributed to Dr. Krieger.

Gratitude to those who don't ask questions. - Dr. Krieger

"Gratitude to those who don't ask questions."

Dr. Krieger Gratitude

"I'm not insane, I'm just not sane in the traditional sense."

"You know what they call me in the lab? Doctor. Because I have a PhD."

"Science doesn't care about your feelings."

"I've done worse things before breakfast."

"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"