1. "Life should be built on the conservation of energy."
- Quote by Herbert M. Shelton
3. "Conservation is a state of harmony between men and land."
- Quote by Aldo Leopold
4. "For instance, Conservation International, The Nature Conservancy, and the Conservation Fund have all received money from Shell and BP, while American Electric Power, a traditional dirty-coal utility, has donated to the Conservation Fund and The Nature Conservancy. WWF"
- Naomi Klein, This Changes Everything: Capitalism vs. the Climate
5. "I baptize you in the name of the conservation of energy. What comes around goes around."
- Quote by Maile Meloy
9. "Just as there are laws of Conservation of Matter and Energy, so there are in fact Laws of Conservation of Pain and Joy. Neither can ever be created or destroyed. But one can be converted into the other."
- Spider Robinson, Callahan's Crosstime Saloon