Karl Heinrich Marx
He is a German revolutionary thinker, philosopher, sociologist, historian, economist and one of the most influential thinkers of all ages.
His theory of value: value is only placed on "manual work" and only the human arm may be the creator of value.

While Marx's labor theory of value has been challenged, his critique of capitalism and his insights into class struggle remain highly relevant today. His work has inspired countless movements for social justice and economic equality.