Who said "I have found that humility is the mark of true greatness."?

This quote is attributed to James B. Duke.

I have found that humility is the mark of true greatness. - James B. Duke

"I have found that humility is the mark of true greatness."

James B. Duke

Tobacco Magnate American 1856–1925

"I believe in giving everyone a fair chance to succeed based on merit and hard work."

"Education is the foundation upon which all progress is built."

"A man's legacy is measured not by his wealth, but by his impact on others."

"The pursuit of excellence should be relentless and uncompromising."