Who said "Knowledge is the true inheritance of any lord."?

This quote is attributed to Rhaegar Targaryen.

Knowledge is the true inheritance of any lord. - Rhaegar Targaryen

"Knowledge is the true inheritance of any lord."

Rhaegar Targaryen Education

"The dragon has three heads."

"I have a duty to my realm and to the future."

"Music is the voice of the soul."

"Love is the most powerful force in the world."

"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."