Who said "The cultivation of one's mind is a lifelong endeavor."?

This quote is attributed to Isabella d'Este.

The cultivation of one's mind is a lifelong endeavor. - Isabella d'Este

"The cultivation of one's mind is a lifelong endeavor."

Isabella d'Este

Patron Duchess Collector Italian 1474–1539

"I am Isabella d'Este, and I bow to no one but God and the Pope."

"Art is the highest expression of the human spirit."

"A woman's intellect is as capable as a man's, if given the opportunity."

"I collect beauty as others collect gold."