Evolution has made us omnivores, and substantial quantities of meat can be produced by feeding plant matter whose production does not directly compete with growing food crops: crop residues, food processing waste, low-quality grain, and controlled grazing by ruminants.

Most of the energy in North America is just consuming - Wal-Mart, shopping centres, government offices - or personal consumption: houses, cars, flying to Hawaii, gambling in Las Vegas. We could live affluent lifestyles with half as much energy.

All I want is to be left alone to write my books.

Vaclav Smil Quotes