Read the following passage and answer the question.

I drove my weight on it from above and bored it home
as a shipwright bores his beam with a shipwright's drill
that men below, whipping the strap back and forth, whirl
and the drill keeps twisting faster, never stopping –

Which of Odysseus' character traits is being compared to a shipwright's drill in this passage?

his strength
his cleverness
his courage
his loyalty