Space is a never-ending race track. The thermal shock region on the prow of our solar system, for example, is screaming through the heavens at 490,000 miles an hour. Earth is hurtling round the sun at 67,000 miles an hour. God, it seems, is a complete speed freak. – Top Gear, series 16, episode 6

No one should be able to enter a wilderness by mechanical means. – Garrett Hardin, The Ecologist, February 1974

A pedestrian is someone who thought there were a couple of gallons left in the tank. – Author Unknown