The bourgeoisie own the means of production (land, machinery, buildings, tools) and purchase labor. They are motivated by the desire for profit. As a result capitalists seek to expand their markets, to make the production process more efficient and less dependent on human labor, and to find the cheapest sources of labor and raw materials. The less powerful class, the proletariat, own nothing of the production process but their labor. The proletariat’s labor is a commodity no different from machines and raw materials. The bourgeoisie (or the capitalists) wield considerably more power than the proletariat. Conflict exists between proletariat and bourgeoisie because those who own the means of production exploit workers by “stealing” the value of their labor. That is, the capitalists pay workers only a fraction of the profits they make from the workers’ labor and push them to increase output without a commensurate pay raise. Capitalists justify their actions with the argument that the proletariat are free to take their labor elsewhere if they don’t like the arrangement.