Quickness, also known as With the Quickness, is the fourth full-length studio album by hardcore punk pioneers Bad Brains. At the time of its release, it was the best selling Bad Brains album and also featured an MTV video for the lead-off track "Soul Craft" directed by Paul Rachman who later went on to produce and direct the feature documentary American Hardcore. Drummer Earl Hudson, though pictured on the cover, does not play on the record, as drum parts were instead performed by Mackie Jayson of the Cro-Mags. In an interview with MTV, guitarist Dr. Know said that the album's title comes from urgency and swiftness.

The album was a crossover release that contained elements of several genres, including funk, hip hop, heavy metal, punk, and reggae, which made a notable return after being absent from 1986's I Against I. It is also the band's most controversial release, containing lyrics that some claim were homophobic.