Who said "I am grateful for the mind with which I was blessed."?

This quote is attributed to Dexter.

I am grateful for the mind with which I was blessed. - Dexter

"I am grateful for the mind with which I was blessed."

Dexter Gratitude

"What does this button do?"

"I must focus on my work."

"Science rules!"

"Dee Dee, get out of my laboratory!"

"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"