Who said "Hope is a dangerous thing, but also a necessary one."?

This quote is attributed to Rhaegar Targaryen.

Hope is a dangerous thing, but also a necessary one. - Rhaegar Targaryen

"Hope is a dangerous thing, but also a necessary one."

Rhaegar Targaryen Hope

"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."

"Every day is a new opportunity."

"Hope is what gets us through difficult times."

"I'm not your enemy, kid. I'm trying to save you."

"Redemption is a long road."