DRC

The bicycle is a curious vehicle.  Its passenger is its engine.  

~John Howard

Bicycling is the nearest approximation I know to the flight of birds.  The airplane simply carries a man on its back like an obedient Pegasus; it gives him no wings of his own. 

 ~Louis J. Helle, Jr., Spring in Washington

Think of bicycles as rideable art that can just about save the world.  ~Grant Petersen

When man invented the bicycle he reached the peak of his attainments.  Here was a machine of precision and balance for the convenience of man.  And (unlike subsequent inventions for man's convenience) the more he used it, the fitter his body became.  Here, for once, was a product of man's brain that was entirely beneficial to those who used it, and of no harm or irritation to others.  Progress should have stopped when man invented the bicycle.  ~Elizabeth West, Hovel in the Hills

Consider a man riding a bicycle.  Whoever he is, we can say three things about him.  We know he got on the bicycle and started to move.  We know that at some point he will stop and get off.  Most important of all, we know that if at any point between the beginning and the end of his journey he stops moving and does not get off the bicycle he will fall off it.  That is a metaphor for the journey through life of any living thing, and I think of any society of living things.  ~William Golding