"And, as if nature were protecting man against his own ingenuity, the reproductive processes were affected for a time; men became sterile, women had miscarriages, menstruation stopped"

This quote by John Hersey recommends that nature is protecting human beings from their own ingenuity. It indicates that people have developed something that is so effective that it has the potential to cause damage to them. The quote suggests that nature has actually stepped in to safeguard humans by affecting their reproductive processes. Guys have ended up being sterile, women have actually had miscarriages, and menstruation has actually stopped. This recommends that nature is attempting to safeguard people from the consequences of their own actions. It indicates that humans have developed something that is so effective that it has the potential to cause damage to them, and nature is intervening to protect them. This quote is a reminder that people should be mindful of the consequences of their actions and be aware of the potential dangers that they might be producing.