Who said "I sought the light, but I may have only brought darkness."?

This quote is attributed to Rhaegar Targaryen.

I sought the light, but I may have only brought darkness. - Rhaegar Targaryen

"I sought the light, but I may have only brought darkness."

Rhaegar Targaryen Philosophy

"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."

"I've seen the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."