Because we humans are big and clever enough to produce and utilize antibiotics and disinfectants, it is easy to convince ourselves that we have banished bacteria to the fringes of existence. Don't you believe it. Bacteria may not build cities or have interesting social lives, but they will be here when the Sun explodes. This is their planet, and we are on it only because they allow us to be.
Bill BrysonIn the countryside, litter doesn't have a friend. It doesn't have anybody who's saying, 'Wait a minute, this is really starting to get out of control.'
Bill BrysonThe remarkable position in which we find ourselves is that we don't actually know what we actually know.
Bill Bryson