"Thou shalt not extinguish thine anger, but shall master it,
that thy conscience may not be blunted by adjustment
to wrong causes." -The Dutch Ten Commandments to Foil the Nazis
I assume it would be obvious (contra NBC's drumbeat to the contrary) that Michael Phelps is not the greatest olympian of all time given that no one, to the best of my knowledge, thought that Russian gymnast who had previously won more medals that anyone else was the best of all time before him.