John Boyne

There's things that happen in a person's life that are so scorched in the memory and burned into the heart that there's no forgetting them.

Sitting around miserable all day won't make you any happier. 

What exactly was the difference? he wondered to himself. And who decided which people wore the striped pajamas and which people wore the uniforms?

The thing about exploring is that you have to know whether the thing you've found is worth finding. Some things are just sitting there, minding their own business, waiting to be discovered. Like America. And other things are probably better off left alone. Like a dead mouse at the back of the cupboard.

Don't make it worse by thinking it's more painful than it actually is.

Their lost voices Must continue to be heard.