Shortly after Francis Crick and James Watson discovered the structure of DNA, Crick wrote a letter to his 12 year old son, Michael. The letter opens with this self-effacing statement:
Jim Watson and I have probably made a most important discovery.
The letter valued at between one to two million dollars is to be auctioned by Christie's. Michael Crick grateful for the support of the Salk Institute gave to his father has promised half to the proceeds to the institute.
The letter ends with "Lots of love, Daddy."