Some failure in life is inevitable. It is impossible to live without failing at something, unless you live so cautiously, that you might as well not have lived at all. In which case you have failed by default. Failure gave me an inner security that I had never obtained by passing examinations. Failure taught me things that I could not have learned any other way. I discovered I had a strong will and more discipline than I had suspected.

The best of us must sometimes eat our words.

I felt I had to solve everyone's problems.

I will not calm down!

The Potter books in general are a prolonged argument for tolerance, a prolonged plea for an end to bigotry. And I think it's one of the reasons that some people don't like the books, but I think that's it's a very healthy message to pass on to younger people that you should question authority and you should not assume that the establishment or the press tells you all of the truth.

Power was my weakness and my temptation.

There had been no more attacks since those on Justin and Nearly Headless Nick, and Madam Pomfrey was pleased to report that the Mandrakes were becoming moody and secretive, meaning that they were fast leaving childhood.