Evidence, there was never enough evidence. He swam in it. That was it – physical training, it was the way he stayed in shape. That has to be it. You ate your heart out to keep the revolutionary tension. [...] The implication of all the things he used to flaggelate himself was that American democracy wasn’t democratic enough. He continued to be astonished, insulted, outraged, that it wasn’t purer, freer, finer, more ideal. Finding proof of it over and over again [...] like a guy looking for confirmation. How much confirmation did he need? Why did he expect so much of a system he knew by definition could never satisfy his standards of justice? [...] And it was more than strategy [...], it was passion.
E. L. Doctorow, The Book of Daniel