"But my duty to the Superherd compelled my actions."

"Then surely, duty must compel you far from me."

She insisted she'd not aid him, that duty compelled her to remain to treat dying killers rather than leave such threatening circumstances.

"How can I make you understand what duty compels me to do?"

I was here, and my duty compelled me.

Does my duty compel me any less than a man's?

Her husband was accustomed to occupying it alone, when his duties compelled him to remain with the garrison.

And in any case, he felt that duty now compelled him to go on with his uncle Mark without delay.

His duty to the law compelled him to arrest his friend on a murder charge.

The captain nodded agreement, but duty compelled him to speak.