Pre-twentieth century Western science emerged out of a divided whole worldview embedded with colonizing elements of self-determination and solidarity that persist in social work practice. This view links to ancient atomism and ontological beliefs that all things exist independently in space and time. Together, sums of independent parts equal the whole. Social work’s nineteenth century origins were influenced by the dominance of Western science. Quantum sciences in the twentieth century have shown the divided whole view to falsely rely on the analytical summing of independent parts. Even transformations to whole-person perspectives and interdependent collaboration have yet to see social work fully transition to an undivided whole worldview. Evidence of boundaries still to be pushed is tracked through the profession’s progressive Ethical Principles transformations in the twentieth and twenty-first centuries. These transformation pushes are significant but remain insufficient in shrinking the presence of colonizing elements in science from social work practice. As the second quarter of the twenty-first century nears, The People’s Charter for an Eco-Social World founded on the prefix principle of “co” and its four priorities is a significant nudge toward more practice actions that will remove the dominance of these colonizing elements from social work principles and practices.