统治阶级掌握着物质生产的手段;无产阶级仅有的是他们的劳动力。
The ruling class has the means of material production at its disposal; the proletariat has nothing but their labor power.
The simplest solutions are often the most elegant.
You must not think that what is hard for you to master is humanly impossible; and if it is humanly possible, consider it to be within your reach.