Who said "The artist who stops learning becomes irrelevant."?

This quote is attributed to Sergei Diaghilev.

The artist who stops learning becomes irrelevant. - Sergei Diaghilev

"The artist who stops learning becomes irrelevant."

Sergei Diaghilev Education

Impresario & Entrepreneur Russian 1872–1929

"Astonish me!"

"I want you to steal."

"The public always prefers entertainment to art."

"Art should be ephemeral."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."