Duty is the great business of a sea officer; all private considerations must give way to it, however painful it may be.

Silence is sometimes the answer.

The true test of character is not how much we know how to do, but how we behave when we don't know what to do.

We are not put on this earth to see through one another, but to see one another through.

Duty, then, is the sublimest word in the English language. You should do your duty in all things. You can never do more; you should never wish to do less.

Duty is the fire that lights the darkness, the constant glow that illuminates the path of the righteous.

Duty, honor, country. Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be.

Duty is the echo of God's command, sounding through the corridors of time and eternity.

Duty is the echo of God's command, sounding through the corridors of time and eternity.

The first duty of a human being is to assume the right functional relationship to society - more briefly, to find your real job, and do it.

Duty is the essence of manhood.

No duty is more urgent than that of returning thanks.

The first duty of society is justice.

Do your duty, and leave the rest to Providence.

Duty is the essence of morality.

The duty of every citizen is to question authority.

Do your duty, and leave the rest to heaven.

No man has a right to do what he pleases, except when he pleases to do right.

The duty of youth is to challenge corruption.