Karl Marx

"Philosophy does not exist to explain the world but to change it."

"The working class must free itself from exploitation."

"The history of all societies is the history of class struggle."

"Every person has the right to work and to the results of their labor."

"A person becomes what they are only within society."

"Labor is the source of all value."

"Revolution is the engine of progress."

"No one can be free as long as oppression exists."

"The problems of society can only be solved through a change in the social order."

"All historical forms of society are temporary."