I've researched a little about Marxism, and I've found that Karl Marx was a brilliant philosopher; however, I've never heard anyone commend communism. Despite this, why is communism deemed an inappropriate economic system? I've heard the argument of greed being unstoppable, but didn't Marx argue that greed was the result of social conditioning? Couldn't a communist economic system simply result in slackers being pressured to work by outside sources - wouldn't something be implemented to prevent abuse of the system? Also, I've noticed that people often group socialism and communism together (perhaps because Marx said socialism led to communism); however, they aren't identical. Socialism, to my knowledge, contains no unrealistic factors as an economic system. To each according to ability, to each according to effort - it seems reasonable to me. With a socialist system wouldn't talented individuals who coast on the capitalist system be forced to work harder? Overall, I've been researching other economic systems for interest; furthermore, I'm wondering why the world has seemed to stop and say - democracy and capitalism - that is the answer. Shouldn't society progress over time - is a democratic, capitalist society really the final answer until the end of time? I know many brilliant individuals have advocated change - if I remember correctly, Einstein supported social democracy.