I've just heard that one of my all-time heroes, Martin Gardner, has
died. He was 95, so it is hardly surprising, but sad nonetheless. He
wrote a book which was highly significant in the development of my
interest in mathematics and art, "Goedel, Escher and Bach" and also
published my favourite edition of "Alice in Wonderland" with
annotations about the mathematics and jokes embedded in the original
text and his writings and thoughts have been a constant in my adult
life. Despite his death, I'm sure that this will continue to be true.