Draco... you are no assassin.
Read more Professor Albus Dumbledore QuotesFrom: Harry Potter and the Half-Blood Prince (2009)
These are mad times we live in! Mad!
Horace Slughorn :Harry!Harry Potter : Sir!
This memory is a different kind of magic. Very dark. Very parcel. Without it, we are blind. It leaves the fate of our world to chance. You have no choice, you must not fail. Once again, I must ask too much of you, Harry.