Who said "The door to success is opened by the key of hard work."?

This quote is attributed to James B. Duke.

The door to success is opened by the key of hard work. - James B. Duke

"The door to success is opened by the key of hard work."

James B. Duke Success

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."

"Success comes to those who never give up."

"Success is measured by happiness, not money."

"You make your own luck in this world."

"You have to be organized to be successful in anything."