Communism: Social ideal
according to which all members of a community share everything, and
'each contributes according to his ability, and each receives according
to his needs'.
The ideal of communism may be as old as
mankind - "if only the rich were willing to share fairly with us poor
people" - but like many ideals it is impracticable because it does not
conform to human nature, at least as this is on average. (See:
Wherever serious experiments have been made with communism -
interestingly, notably in small religious or socialist communities in
the United States - these experiments rapidly failed, because the
majority was far more prone to receive than to contribute.