Final answer:
Modern civilization has failed to bring peace of mind due to the lack of a global plan, cultural maladaptations, and major disparities in health and conditions of life.
Step-by-step explanation:
The failure of modern civilization to bring peace of mind can be attributed to several factors. One reason is the lack of a global plan for peace and prosperity established by the adults of the world. In the past, when human impacts were limited, the absence of a plan may not have been a significant issue. However, in today's world where human impacts are significant and global in scale, a lack of coordinated action can lead to unrest and conflicts.
An example of how a cultural maladaptation can hinder peace and prosperity is observed in the Mayan civilization. They believed that torturing and sacrificing human beings would please the gods and bring prosperity. However, this brutal behavior caused unnecessary suffering and ultimately led to the collapse of their civilization.
Furthermore, major disparities in health and conditions of life across different socioeconomic groups and the existence of weapons of mass destruction contribute to the lack of peace of mind in modern civilization.