What scientists believe but can't prove

[Roy Schestowitz <newsgroups@xxxxxxxxxxxxxxx>]

http://www.timesonline.co.uk/article/0,,8123-1957199,00.html

<snip>
  ALISON MURDOCH
  Professor of reproductive medicine

  I believe that life does not begin at conception, but I have no proof. I am
  an atheist and I believe in the sanctity of life but not that there is a
  higher spirit up there creating it.
</snip>