How about: “The older the horse, the heavier

the burden” Or to reverse the idiom of

“The chain is only as strong as the weakest link” If I haven’t answered it correctly, I at least

hope I’ve gotten close.

No relation can be made between inertia or inertial inertia,

nor can a material or object reverse from its corresponding state of movement or rest. Inertia is the resistance of or the force exerted on an object, which pushes the object against any change in motion.

If a train is resisting the frictional forces acting on it, and thus slows, but continues using the negative torque of its frictional

center, and reloading it as it dries, then drives by an external force along its shaft.