Maturity: Be able to stick with a job until it is finished. Be able to bear an injustice without having to get even. Be able to carry money without spending it. Do your duty without being supervised.
Ann Landers

It is easier to do one's duty to others than to one's self. If you do your duty to others, you are considered reliable. If you do your duty to yourself, you are considered selfish.
Thomas Szasz

The dignity of the artist lies in his duty of keeping awake the sense of wonder in the world. In this long vigil he often has to vary his methods of stimulation; but in this long vigil he is also himself striving against a continual tendency to sleep.
Marc Chagall

Our duty is to be useful, not according to our desires but according to our powers.
Henri Frederic Amiel

It is the duty of man to raise up man.
Jose Marti

There is happiness in duty, although it may not seem so.
Jose Marti

Man is a living duty, a depository of powers that he must not leave in a brute state. Man is a wing.
Jose Marti

And if the great fear had not come upon me, as it did, and forced me to do my duty, I might have been less good to the people than some man who had never dreamed at all, even with the memory of so great a vision in me.
Black Elk

You can't, in sound morals, condemn a man for taking care of his own integrity. It is his clear duty.
Joseph Conrad

Every duty is a charge, but the charge of oneself is the root of all others.
Mencius

The philosopher ought never to try to avoid the duty of making up his mind.
Mortimer Adler

The man who prefers his country before any other duty shows the same spirit as the man who surrenders every right to the state. They both deny that right is superior to authority.
Lord Acton

We must make it an imperative duty of our government to protect the gifts which Nature has bestowed on America and to insure the maintenance of a clean, healthy, wholesome environment for our people.
George Lincoln Rockwell

When I have had such men before my camera my whole soul has endeavored to do its duty towards them in recording faithfully the greatness of the inner as well as the features of the outer man. The photograph thus taken has been almost the embodiment of a prayer.
Julia Margaret Cameron

The rule of joy and the law of duty seem to me all one.
Oliver Wendell Holmes, Jr.

Your position never gives you the right to command. It only imposes on you the duty of so living your life that others can receive your orders without being humiliated.
Dag Hammarskjold

A task becomes a duty from the moment you suspect it to be an essential part of that integrity which alone entitles a man to assume responsibility.
Dag Hammarskjold

It is seldom very hard to do one's duty when one knows what it is, but it is often exceedingly difficult to find this out.
Samuel Butler

That's the duty of the old, to be anxious on behalf of the young. And the duty of the young is to scorn the anxiety of the old.
Philip Pullman

Self-development is a higher duty than self-sacrifice.
Elizabeth Cady Stanton