Dementors caused a person to relive the worst moments of their life. What would spoiled, pampered, bullying Dudley have been forced to hear?

Secretly we're all a little more absurd than we make ourselves out to be.

Why were you lurking under our window?" "Yes - yes, good point, Petunia! What were you doing under our windows, boy?" "Listening to the news," said Harry in a resigned voice. His aunt and uncle exchanged looks of outrage. "Listening to the news! Again?" "Well, it changes every day, you see," said Harry.

What's most important in a friendship? Tolerance and loyalty.

Don't let the muggles get you down.

Unlike any other creature on this planet, humans can learn and understand, without having experienced. They can think themselves into other people's places. We do not need magic to change the world, we carry all the power we need inside ourselves already: we have the power to imagine better.

Kreacher said nothing,” said the elf, with a second bow to George, adding in a clear undertone, “and there’s its twin, unnatural little beasts they are.