Ireland is such a young society. The British were the ruling class up until they left about a hundred years ago, and we've been trying to work out what our class hierarchy is ever since.

Our entire society is based on discontent. People wanting more and more and more. Being constantly dissatisfied with their homes, their bodies, their décor, their clothes, everything – taking it for granted that that’s the whole point of life. Never to be satisfied. If you are perfectly happy with what you got, especially if what you got isn’t even all the spectacular then you’re dangerous. You’re breaking all the rules. You’re undermining the sacred economy. You’re challenging every assumption that society is built on.

Some people are little Chernobyls, shimmering with silent, spreading poison: get anywhere near them and every breath you take will wreck you from the inside out.

It took my breath away, that evening. If you've ever dreamed that you walked into your best-loved book or film or TV program, then maybe you've got some idea how it felt: things coming alive around you, strange and new and utterly familiar at the same time; the catch in your heartbeat as you move through the rooms that had such a vivid untouchable life in your mind, as your feet actually touch the carpet, as you breathe the air; the odd, secret glow of warmth as these people you've been watching for so long, from so far away, open their circle and sweep you into it.

Have you noticed how easily the very young die? They make the best martyrs for any cause, the best soldiers, the best suicides. It's because they're held here so lightly: they haven't yet accumulated loves and responsibilities and commitments and all the things that tie us securely to this world. They can let go of it as easily and simply as lifting a finger. But as you get older, you begin to find things that are worth holding onto, forever.

I wanted to tell her that being loved is a talent too, that it takes as much guts and as much work as loving; that some people, for whatever reason, never learn the knack

If you're writing a scene for a character with whom you disagree in every way, you still need to show how that character is absolutely justified in his or her own mind, or the scene will come across as being about the author's views rather than about the character's.