Few people think more than two or three times a year; I have made an international reputation for myself by thinking once or twice a week.
Cheese - milk's leap toward immortality.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man.
To do anything truly worth doing, I must not stand back shivering and thinking of the cold and danger, but jump in with gusto and scramble through as well as I can.
Hearing voices no one else can hear isn't a good sign, even in the wizarding world.
There is still a difference between something and nothing, but it is purely geometrical and there is nothing behind the geometry.
The more things a man is ashamed of, the more respectable he is.