The active voice is when the subject performs the action of the sentence, while the passive voice is when the subject receives the action. The active voice uses active verbs to convey action and is generally stronger, more direct, and clearer than the passive voice. However, the passive voice has its uses, such as when the actor is unknown, to change emphasis or pace, or to take a gentler or more objective tone. Writers should rely more on the active voice but not use it exclusively.