My wish for tomorrow, a book published by Unicef to mark its 50th anniversary.

Learning Curve: Beauty is still in the eye of the beholder

Often some of my students ask why I don't dye my greying hair. I would look so much younger, they say. And when I ask who I would look younger to, their somewhat bewildered reply is, well, everyone. I stretch the argument to make my point. But would I feel younger?