As soon as a man and woman of almost any age are alone together within four walls it is assumed that anything may happen. Spontaneous combustion, instant fornication, triumph of the senses. What possibilities men and women must see in each other to infer such dangers. Or, believing in the dangers, how often they must think about the possibilities.

Spend time with those you love. One of these days you will say either, 'I wish I had', or 'I'm glad I did.'

All relationships change the brain - but most important are the intimate bonds that foster or fail us, altering the delicate circuits that shape memories, emotions and that ultimate souvenir, the self.

I didn't marry you because you were perfect. I didn't even marry you because I loved you. I married you because you gave me a promise. That promise made up for your faults. And the promise I gave you made up for mine. Two imperfect people got married and it was the promise that made the marriage. And when our children were growing up, it wasn't a house that protected them; and it wasn't our love that protected them--it was that promise.

You have to know how to co-operate with other people if you want to stay alive and raise children. And to do that, you need to know something about them. You need to know who loves whom, who hates whom, who is sleeping with whom. Who is honest, who is a cheat.

They all broke the rules. They all crossed into forbidden territory. They all tampered with the laws that lay down who should be loved and how. And how much. The laws that make grandmothers grandmothers, uncles uncles, mothers mothers, cousins cousins, jam jam, and jelly jelly. It was a time when uncles became fathers, mothers lovers, and cousins died and had funerals. It was a time when the unthinkable became thinkable and the impossible really happened.