while browsing an interesting list of 'political essays - by non politicians', i stumbled upon a rather interesting one that was written by none of other than Mr.Einstein!
it's a pretty long read, but is possible to do in one sitting. it's rather criticising of capitialism, and he even points speaks a bit about some marxist thoughts;
"We shall require a substantially new manner of thinking if mankind is to survive."
anyway, the essy is called "Why Socialism" and i just think it's worth reading.