I've often met people who are terrified, you know, in a straight jacket of their own making because they'd rather do anything that fail. They don't want to try for fear of failing.

Do you mean ter tell me," he growled at the Dursleys, "that this boy—this boy!—knows nothin' abou'—about ANYTHING?" Harry thought this was going a bit far. He had been to school, after all, and his marks weren't bad. I know some things," he said. "I can, you know, do math and stuff.

We all know that the people we love are mortal, we all know we’re mortal, we know it’s going to end; you cannot prepare yourself for it.

You've sort of made up for it tonight,' said Harry. 'Getting the sword. Finishing off the Horcux. Saving my life.' 'That makes me sound a lot cooler than I was,' Ron mumbled. 'Stuff like that always sounds cooler than it really was,' said Harry. 'I've been trying to tell you that for years.' Simultaneously they walked forwards and hugged, Harry gripping the still sopping back of Ron's jacket.

Curiosity is not a sin.... But we should exercise caution with our curiosity... yes, indeed.

Great, tell me when you've defeated Voldemort for me, will you?

We’re all going to keep fighting, Harry. You know that?