Girindra

“Do you remember me telling you we are practicing non-verbal spells, Potter?"
"Yes," said Harry stiffly.
"Yes, sir."
"There's no need to call me "sir" Professor."
The words had escaped him before he knew what he was saying.”
― J.K. Rowling, Harry Potter and the Half-Blood Prince

“Bran thought about it. 'Can a man still be brave if he's afraid?'
'That is the only time a man can be brave,' his father told him.”
― George R.R. Martin, A Game of Thrones