"Another philosophical question regards the very definition of the word 'selection'. One of the original formulations of selection was 'the survival of the fittest'. If you open a standard textbook of genetics 'fitness' will probably be defined as 'the ability to survive' or something similar. But if the 'fittest' are defined as 'the best survivors' then the idea of natural selection becomes 'the survival of those best at surviving'. So what else is new? If there is no more to Darwinism than a truism then the whole theory rests on very shaky ground."