Life isn't so complicated for children. They have more time to think about the really important things. That's why I occasionally moralise in my children's books in a way I wouldn't dare when writing for adults.
It is, I claim, nonsense to say that it does not matter which individual man acted as the nucleus for the change. It is precisely this that makes history unpredictable into the future.
Evolution is fascinating to watch. To me it is the most interesting when one can observe the evolution of a single man.

