Who said "The world is what we make it."?

This quote is attributed to Rhaegar Targaryen.

The world is what we make it. - Rhaegar Targaryen

"The world is what we make it."

Rhaegar Targaryen Creativity

"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."

"When life gives you lemons, make something beautiful."

"Creativity knows no bounds."

"Creativity is the expression of the soul."

"I'm making this up as I go."