The Border is the scar of history.

A Border is scratched across the hearts of men by strangers with a calm, judicial pen, and when the borders bleed we watch with dread the lines of ink across the map turn red.

The Border is strategically important — When the lips are gone the teeth are cold.

A Border is established so there is something to fight about.

A Boundary is wise to keep — A fence between makes love more keen.

The Boundary is requisite to conflict — spatial boundaries are evident in every finite conflict.

A Boundary is, in political geography, an imaginary line between two nations, separating the imaginary rights of one from the imaginary rights of the other.

A Boundary is a divider, real or imagined, designed to enforce civility. See "failure".

The Bridge is not always possed of an other side. Crossing is all that matters.

A Bridge is literally a bridge through space and time.

A Bridge is a hallway

A Bridge has no allegiance to either side.

A Chain grows weaker with each new link it adds.

The Chain's weakest link is also the strongest. It can break the chain.

A Chain is no stronger than its weakest link.