Final answer:
The quotation reflects the science-based approach to social reform in the late 1800s, particularly the work of Dr. John Snow who used data and mapping to reduce cholera by identifying and removing a contaminated water source.
Step-by-step explanation:
The quotation illustrates the empirical approach to social reform taken by some reformers during the late 1800s and early 1900s.
This period saw an increased focus on using scientific reasoning and data to address public health issues. At the forefront was Dr. John Snow, who addressed the cholera epidemic by collecting data, interviewing residents, and making a detailed map showing the correlation between cholera cases and contaminated water sources.
By proposing the removal of the handle of the Broad Street pump, he was able to reduce the impact of the outbreak, thereby demonstrating that waterborne diseases could be controlled through improvements in water and waste systems.