Socialism & the human condition

What do you know of it? How do you personally define it? Can you distinguish between it and communism? How many kinds of socialism and communism are you familiar with? What are your attitudes toward both?

I am a Marxist, and I look forward to the revolution that will no doubt occur regardless. However, I find the human condition argument against socialism to be the most powerful. I'd love to hear peoples' thoughts on it.

I feel we can have this discussion for real, now that Bernie Sanders...

Socialism & the human condition