Natural science will in time incorporate into itself the science of man, just as the science of man will incorporate into itself natural science: there will be one science. – Karl Marx
It is absolutely impossible to transcend the laws of nature. What can change in historically different circumstances is only the form in which these laws expose themselves. – Karl Marx
Capital is money, capital is commodities. By virtue of it being value, it has acquired the occult ability to add value to itself. It brings forth living offspring, or, at the least, lays golden eggs. – Karl Marx
Mankind always sets itself only such tasks as it can solve; since, looking at the matter more closely, we will always find that the task itself arises only when the material conditions necessary for its solution already exist or are at least in the process of formation. – Karl Marx