Black Widow (Age of Ultron)

"I've been red in the ledger. A lot of red. I'm not going to get it out."

"The hardest thing is living with yourself when you know what you've done."

"I know what it's like to have power forced upon you. It's not freedom."

"Everyone I've ever cared about has left. But I keep moving forward."

"You don't get to choose your past, but you can choose who you become."

"Being a hero means doing the right thing even when it costs you everything."

"I've lived a lot of lives. Some of them were worth living."

"Sometimes the most dangerous enemy is the one inside your own head."

"Trust is the most dangerous weapon anyone can give you."

"I know what pain looks like. I've worn it like a second skin."

"You can't save everyone. But you can try to save the ones that matter."

"The line between hero and killer is thinner than most people think."

"I didn't choose this life. But I'm choosing what I do with it now."

"Regret is just another word for experience."

"In this life, you learn to appreciate the small moments of peace."

"I've been trained to kill since I was a child. But I choose not to."

"Love is a weakness. But it's also the only thing that makes you human."

"You can't run from your past. You have to face it."

"I've learned that loyalty is worth more than anything else."

"The world doesn't care about your story. So you have to make it matter."

"Sometimes you have to be the villain to save the ones you love."

"I don't believe in forgiveness. I believe in moving forward."

"Pain makes you stronger. If it doesn't kill you."

"The truth is messy. It's ugly. But it's all we have."

"I've made more mistakes than most people have had chances."

"Fear is just fuel if you know how to use it."

"In my experience, hope is dangerous. But it's also necessary."

"You don't get to choose your family. But you can choose your fight."

"I've learned that mercy is sometimes the strongest weapon."

"The world needs heroes. Even the broken ones."