The passive voice is, after all, grammatically correct. But there's a reason that public relations and communications professionals write in an active voice rather than a passive voice.

The term “voice,” as a linguistic category, indicates the relationship between the subject of a sentence and its verb. In English, there are two voices--active and passive ... and the creation of flow ...

Microsoft Word 2010 can help punch up your document's prose by alerting you when you use passive voice in a sentence. If you write "the goal was achieved" instead of the more active "we achieved ...