Colin Wilson

Whereas in the past optimism had been regarded as rather shallow - because 'oh well, it's just your temperament, you happen to be just a cheerful sort of person' - what I wanted to do was to establish that in fact it is the pessimists who are allowing all kinds of errors to creep into their work.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.