Nine in the third place means

The inferior man works through power.

The superior man does not act thus.

To continue is dangerous.

A goat butts against a hedge

And gets its horns entangled.

Making a boast of power leads to entanglements, just as a goat entangles its horns when it butts against a hedge. Whereas an inferior man revels in power when he comes into possession of it, the superior man never makes this mistake. He is conscious at all times of the danger of pushing ahead regardless of circumstances, and therefore renounces in good time the empty display of force.