The payment of taxes is an obvious and insistent duty, and its sanction is usually punitive.

I'm sure it's embarrassing to some people to have their names listed as owing taxes. But it's our duty to do everything in our powers to collect the taxes.

In doing what we ought we deserve no praise, because it is our duty.

Thanks to the gods! my boy has done his duty.

Just admit it, Tim, you raised taxes, ... He broke ties in the Senate, folks. That was his only duty [as lieutenant governor]. I know Governor Warner would be surprised to hear you took credit for 'budget reform.'

An active duty general is on very thin ice to offer any criticisms, negative comments, about the secretary of defense. Once a general is retired, however, the gloves can come off.