How To Start A Revolution

From Brad DeLong's Foreign Affairs review of John Kenneth Galbraith: His Life, His Politics, His Economics, by Richard Parker:

To start a revolution, you need a doctrine that has three qualities:

1. it can be summarized in a single sentence,
   
2. it provides the young with an excuse for ignoring their elders, and
   
3. it tells the young what they can do to further the revolution.

He's actually referring only to revolutions in economic thought, explaining in part why Galbraith hasn't had the same kind of enduring impact as Keynes ("aggregate demand determines supply") or Milton Friedman ("inflation is always and everywhere a monetary phenomenon").

Nevertheless, it seems to me that just about every major social revolution fits the same mold. I can't think of any counterexamples...