Molly

“It was, he thought, the difference between being dragged into the arena to face a battle to the death and walking into the arena with your head held high. Some people, perhaps, would say that there was little to choose between the two ways, but Dumbledore knew - and so do I, thought Harry, with a rush of fierce pride, and so did my parents - that there was all the difference in the world.”
― J.K. Rowling, Harry Potter and the Half-Blood Prince

“Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.”
― J.K. Rowling, Harry Potter and the Goblet of Fire

“Youth can not know how age thinks and feels. But old men are guilty if they forget what it was to be young.”
― J.K. Rowling , Harry Potter and the Order of the Phoenix

“If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.”
― J.K. Rowling, Harry Potter and the Goblet of Fire