How do I insert an empty line? [duplicate]

How can I add an empty line between to paragraphs, thus separating them more strongly?

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marked as duplicate by lockstep, egreg, zeroth, Qrrbrbirlbel, Harish KumarMar 18 '13 at 22:59

I'm almost sure this is a duplicate but \vspace{\baselineskip} should do the job. You can also put a factor in front of the \baselineskip to get more or less extra space.