It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so.

In this quote, Robert A. Heinlein presents a thought-provoking observation about the relationship between religion, political power, and legislation. He argues that it is almost a truism—a widely accepted truth—that any sect, cult, or religion that gains significant political influence will likely try to enforce its creed as law. Heinlein suggests that once a religious group secures the power to govern, it often seeks to institutionalize its beliefs, turning them into formal regulations that affect not only the followers but society at large. This reflects the potential danger of mixing religion and politics.

Heinlein's statement highlights a fundamental concern about the intersection of faith and governance: when a religious group controls the levers of political power, it may prioritize the imposition of its moral and doctrinal views through the law. The creed of the group—its core beliefs and practices—becomes more than just a matter of personal faith but a matter of state policy. This could lead to the suppression of alternative beliefs and the enforcement of one specific worldview, potentially limiting freedom and individual rights.

The quote speaks to Heinlein's broader skepticism of any institution, religious or otherwise, that seeks to exert undue control over individuals’ personal choices. His observation is a warning about the dangers of religious intolerance and the potential for abuse when ideology becomes enshrined in law. Heinlein often explored themes of freedom, autonomy, and the potential for corruption in his science fiction work, and this quote is no exception. He urges caution about the intersection of religious dogma and political authority, seeing it as a natural but troubling tendency.

The origin of this quote lies in Heinlein's broader exploration of individual liberty and the complexities of societal power structures. Known for his influential works of science fiction, such as Stranger in a Strange Land and Starship Troopers, Heinlein often critiqued government and societal institutions, particularly the ways in which power could be abused. This quote reflects his concerns about the potential for authoritarianism and dogmatic control when any belief system gains unchecked power, serving as a cautionary note on the dangerous mixing of religion and politics.