Original caption: "Diagram of a hierarchy of purposes/activities. The idea is that a person should organize less important activities in a way to support a larger goal. In this example, activities such as buying gas and clothing are necessary steps for the larger (more important) goal of being a nature photographer." (Somewhat edited.)
Credit/Permission: ©
User:Tomwsulcer,
2010 /
Creative Commons
CC BY-SA 1.0.
Image link: Wikimedia Commons.
Local file: local link: hierarchy.html.
File: Science file:
hierarchy.html.