Trotsky's Permanent Revolution

In 18 forty eight Marks told the workers to maintain their own independent organizations with their own leaders and their own goals. In this way, they would hasten the advent of the second socialist revolution. But though we see this phrase bandied about in the mid nineteenth century, this is not really the way trotsky will be using it in the early twentieth century. To get to trotsky's conception, we need to briefly detour through an emigre living in berlin who was a leading russian marxist intellectual at the time.