Who said "I don't expect gratitude for doing my duty."?

This quote is attributed to Thaddeus Ross.

I don't expect gratitude for doing my duty. - Thaddeus Ross

"I don't expect gratitude for doing my duty."

Thaddeus Ross

"The world's not about what you want. It's about what you can do for others."

"Sometimes we don't realize how much we've changed until it's too late."

"Leadership is about making the hard choices, not the popular ones."

"You can't protect people from their own decisions."