Does it "hurt" to republish a post from another blog?

I LOVE GOOGLE. I do. But I like wordpress over blogger. So I have my "real" blog at my own site, Verbal Abuse Journals. The site publishes my journal entries from the beginning of my marriage to present. I hope it shows other abuse survivors/victims just how long abuse can continue. It's been over 17 years for me.

That's a damn long time.

My blog is entitled My Verbally Abusive Marriage...and what I'm doing in it. I hope you'll click and check it out.

And could you please answer this question: Will it hurt to copy/paste my posts from my "real" blog into this one? I don't want to maintain two blogs, but I wouldn't mind duplicating my content here, IF it won't hurt according to the search engines and such.