Who said "The man who stops learning has already begun to decline."?

This quote is attributed to Cornelius Vanderbilt II.

The man who stops learning has already begun to decline. - Cornelius Vanderbilt II

"The man who stops learning has already begun to decline."

Cornelius Vanderbilt II Knowledge

Businessman & Heir American 1843–1899

"The man who never made a mistake never tried anything new."

"Wealth is not without its advantages and the case to the contrary, although it has often been made, has never proved wholly persuasive."

"I have always believed that the way to get the best out of people is to make them feel important."

"Idleness is the parent of all vice."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."