Materialism: doctrine according to which matter is the sole ultimate ground of being.
In philosophy, not the popular idea of an acquisitive ethic, but of a broader onto-axiology which is also anti-acquisitive – as with Mo Tzu, Helvetius and Marx over 2300 years. Opposed to idealism, it means materiality (space-time occupancy) alone is real and determining, with organic intelligence and scientific method determining legitimate knowledge.