From Aldo Leopold’s A Sand County Almanac, via Fillyjonk:
There are two spiritual dangers in not owning a farm. One is the danger of supposing that breakfast comes from the grocery, and the other that heat comes from the furnace.
To avoid the first danger, one should plant a garden, preferably where there is no grocer to confuse the issue.
To avoid the second, he should lay a split of good oak on the andirons, preferably where there is no furnace, and let it warm his shins while a February blizzard tosses the trees outside. If one has cut, split, hauled, and piled his own good oak, and let his mind work the while, he will remember much about where the heat comes from, and with a wealth of detail denied to those who spend the week end in town astride a radiator.
We’re about as far from a February blizzard as we can get, but it never hurts to think upon the things we take for granted. To further quote Mr Leopold:
Civilization has so cluttered this elemental man-earth relationship with gadgets and middlemen that awareness of it is growing dim. We fancy that industry supports us, forgetting what supports industry.