Campfire within the Tipi in the Winter. Leave No Trace – This means after camping, or an outdoor event you return the area back to its natural habitat by cleaning up after yourself. A great principle of living sustainably.

In the Marine Corps when you take over a geographical area or a Command, the principle is the same. When you complete your Command or return the Geographical Area, the expectation is that you hand it over better than it was.

In our every deliberation, we must consider the impact of our decisions on the next seven generations.
—Iroquois American Indian Proverb