My first duty was to put myself in communication with Mr. Conrad, the chairman of the Committee of Naval Affairs.
I felt it my first duty to make instant demand for the release or speedy trial of all American citizens under arrest.
My first duty to myself is to preserve myself in health and happiness; but this is best fulfilled and realized in labouring for the health and happiness of others.
Thus from a purely egoistic standpoint, my first duty to myself is to increase the happiness in others, and, therefore, my first duty to myself becomes my highest duty to society.
My first duty was to make them healthy and strong if I could, and to give them as much enjoyment of life as possible.
The truth is, however, that the citizen's first duty is to maintain his rights, as it is the purchaser's first duty to receive the thing for which he has contracted.
My first duty as a patriot is to thank you for a speech which meets fully, squarely, ably, eloquently, conclusively, the one issue upon which our national welfare now depends.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "first duty" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
