"It is my deliberate opinion that the one essential requisite of human welfare in all ways is scientific knowledge of human nature"

Harriet Martineau is recommending that scientific understanding of humanity is the most crucial consider achieving human welfare. She believes that comprehending humanity is essential for comprehending how to finest promote human welfare. This knowledge can be used to produce policies and practices that are beneficial to individuals, such as supplying access to education, healthcare, and other resources. It can also be used to create a much better understanding of how people engage with each other and how to produce a more unified society. By understanding humanity, we can produce a much better world for everybody.