“When a student asked Linus Pauling how he got a good idea, the double Nobel Prize winner answered: 'You have a lot of ideas and you throw away the bad ones.' Francis Crick, co-discoverer of the molecular structure of DNA, said that 'theorists in biology should realize that it is ... unlikely that they will produce a good theory at their first attempt. It is amateurs who have one big bright idea beautiful idea that they can never abandon. Professionals know that they have to produce theory after theory before they are likely to hit the jackpot.”