Robert Winston

I don't believe in regretting - one should try to move on. My mum was good at that. She was deeply in love with my father, and he died when I was nine. She remarried, and her second husband died, too. I saw the grieving process she went through. My mother had this way of moving on. It was a fine trait.

Childhood is not dead. Children were worse off when we were hunter-gatherers; they were threatened in medieval times and exploited during the Industrial Revolution. Was it any better in the time of Charles Kingsley or Charles Dickens?

In the 1990s, the Lib Dems won a string of byelections at the expense of struggling Conservative governments. Christchurch, Ribble Valley and Eastbourne went straight back to the Tories at the next general election, but the Lib Dems held their later byelection gains - Eastleigh, Newbury and Romsey - in at least two subsequent general elections.