Life is like riding a bicycle. To keep your balance, you must keep moving.

I don't ride a bike to add days to my life. I ride a bike to add life to my days.

Nothing compares to the simple pleasure of riding a bike.
Life is like riding a bicycle – in order to keep your balance, you must keep moving.
Life is like riding a bicycle: you don't fall off unless you stop pedaling.
Bicycles are almost as good as guitars for meeting girls.

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