Who said "Gratitude is a sign of weakness. Demand what you deserve."?

This quote is attributed to Lutz.

Gratitude is a sign of weakness. Demand what you deserve. - Lutz

"Gratitude is a sign of weakness. Demand what you deserve."

Lutz Gratitude

"I'm not a nerd. I'm scientifically gifted."

"Sometimes you just gotta do what makes you happy, even if it's weird."

"Life's too short to worry about what other people think."

"I believe in the power of science and reason."

"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"