Mr. Wickham is blessed with such happy manners as may ensure his making friends – whether he may be equally capable of retaining them, is less certain.
– Jane Austen
Pride and Prejudice, Chapter 18. Darcy tells Elizabeth that George Wickham has the outward appearance of pleasant manners which may make him friends. But he claims that this hides Wickham’s bad character, as he does not have the equal capacity to retain friends.