Final answer:
The encyclical's purpose is to assert the importance of human life, advocating for its protection and respect. This is a concept echoed in many historical and philosophical texts, which share the common theme of life's sanctity and the moral responsibility to uphold it.
Step-by-step explanation:
The purpose of the encyclical is to express a strong and definitive affirmation of the value of human life, emphasizing its dignity and inviolability. Encyclicals are papal letters sent to the bishops of the Catholic Church and are often intended to communicate guidelines on how to approach complex issues from a moral and religious standpoint. The quotes provided touch upon the common theme of the sanctity of human life and the moral implications of actions that could threaten it, such as environmental destruction, abortion, and euthanasia.
Throughout history, such documents have influenced the conversation around ethical issues, underlining the importance of human dignity and the right to life. For instance, the quote from John F. Kennedy's inaugural address encapsulates the human potential to either eradicate poverty or life itself, which aligns with the fundamental principles outlined within encyclicals that seek to guide humanity towards preserving and respecting life.
Moreover, the concepts of upholding the right to live and helping others to thrive as intrinsic to our existence correlates with the ethos of many encyclicals that underscore our responsibility to protect life and nature. This perspective is rooted in the understanding of life as a precious gift that requires our stewardship and protection, whether it is addressing human rights, healthcare, or environmental issues.