Appropriating from each other is ... appropriate

Catholics are already copying Protestant techniques for generating enthusiasm in their children (there’s even a growing Catholic niche within Contemporary Christian Music), and evangelicals are tinkering with the model of Catholic education in their own Christian schools. More substantively, many Catholics appreciate the straightforward earnestness of evangelical devotion, while evangelicals are beginning to appropriate the spiritual exercises and theological precision developed in the Catholic tradition. This is possible only because Catholics and evangelicals both have a rich love for Christ, and want it to get richer.

Source: Daniel P. Moloney  -  As quoted in a First Things letter to the editor, https://www.firstthings.com/article/2001/03/peter-and-mary-together