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.
跨境合作对于解决全球粮食挑战至关重要。
The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential.