Who said "I feel the conflict within me. And it makes me stronger."?

This quote is attributed to Kylo Ren.

I feel the conflict within me. And it makes me stronger. - Kylo Ren

"I feel the conflict within me. And it makes me stronger."

Kylo Ren Strength

"I feel it again... the pull to the light."

"Supreme Leader Snoke believes you are the future, but you continue to fail."

"Forgive me. I feel it again, the pull to the light."

"Show me again. The power of the darkness."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."