Individualism comes in at least 10 modes: ontological, logical, semantic, e
pistemological, methodological, axiological, praxiological, ethical, histor
ical, and political. These modes are bound together. For example, ontologic
al individualism motivates the thesis that relations are n-tuples of indivi
duals, as well as radical reductionism and libertarianism. The flaws and me
rits of all ten sides of the individualist decagon are noted. So are those
of its holist counterpart. It is argued that systemism has all the virtues
and none of the defects of individualism and holism. One such virtue is the
ability to recognize that individualism is a system rather than an unstruc
tured bag of opinions-which raises the question whether thorough and consis
tent individualism is at all possible.