Final answer:
Macduff's reaction to the news about his wife and children is one of extreme grief and despair. When Macduff says, 'But I must also feel it as a man,' he means that he must not only grieve as a husband and father, but also as a human being.
Step-by-step explanation:
Macduff's reaction to the news about his wife and children is one of extreme grief and despair. When he first hears the news, he is overcome with confusion and sadness, exclaiming that the murder is a sacrilege. He is devastated by the loss of his family and feels an intense need to mourn their deaths.
When Macduff says, 'But I must also feel it as a man,' he means that he must not only grieve as a husband and father, but also as a human being. This statement highlights his understanding that he needs to acknowledge and process his emotions, rather than suppressing or denying them, in order to fully experience his grief.