"A man must marry only a very pretty woman in case he should ever want some other man to take her off his hands"

This quote by Sacha Guitry suggests that a guy ought to just marry a woman who is appealing, as it will be easier for him to discover someone else to take her off his hands if he ever wants to. This might be translated as a recommendation that marriage must be seen as a service transaction, where a male must just wed a female who is attractive enough to be desirable to other males. This might also be seen as a suggestion that a man ought to only wed a woman for her looks, instead of for her personality or other qualities. It might likewise be analyzed as an idea that a man must not be too attached to his wife, as he must be prepared to offer her up if he ever wants to. Ultimately, this quote indicates that a man ought to be useful when it comes to marriage, and ought to not be too emotionally invested in his wife.