Final answer:
The line represents the interconnectedness of individual rights and the importance of protecting the rights of all individuals.
Step-by-step explanation:
The line "THE RIGHTS OF EVERY MAN ARE DIMINISHED WHEN THE RIGHTS OF ONE MAN ARE THREATENED" means that when one person's rights are threatened or violated, it has a negative impact on everyone's rights. It emphasizes the interconnectedness of individual rights and highlights the importance of protecting the rights of all individuals. This quote reflects the concept of equality and the belief that the collective well-being of society depends on respecting and upholding the rights of each individual.