The road, if expressed in the form (y2-y1)/(x2-x1) is approximate for cases where lim(y2-y1)/(x2-x1) as (x2-x1) -> 0, is represented by the derivative, or rate of change, of the road with respect to the chicken, such that the value of the chicken may be assumed equal to the value of (y2-y1)/(x2-x1), for small values of roads.
NEIL ARMSTRONG:
One small step for a chicken, one giant leap for poultry.
LORD BADEN-POWELL:
Because, as a chicken scout, it needed the Road-Crossing Merit Badge.
SALVADOR DALI:
The fish.
ALBERT EINSTEIN:
Whether the chicken crossed the road, or the road crossed the chicken depends on your frame of reference.
SIR ISAAC NEWTON:
Chickens at rest tend to stay at rest.
Chickens in motion tend to cross the road.
