One thing I love about Tolstoy's War and Peace is how it describes how individuals can cycle through absorbing worldviews, philosophies, causes and projects across the arc of their lives. They feel adrift, then find some great cause to push them forward, exhaust the possibilities of that cause, and find themselves disillusioned when they discovered that they have not "solved" the problem of life. This happens over and over again to some of the central characters of the novel, Prince Andrei and Pierre.

This is not to disdain projects or causes. The older I get, the more I realize that life is a continually evolving question, and the task of living philosophically is partially about living comfortably with the ambiguity that that implies.