One of karl marx's most important achievements was developing the principle of praxis. what does this mean that he thought intellectuals should do?

Karl Marx was a German political philosopher, economist, sociologist, historian, journalist, and the most influential socialist thinker to emerge in the 19th century.
One of Karl Marx's most important achievements was developing the principle of praxis. This means that intellectuals should not just theorize about the world, but change it.

The correct answer would be south africa