When in 1862 the government ended its contract with the Elswick Works, Armstrong went on to sell armaments indiscriminately to foreign countries. Although this seemed controversial to some, Armstrong felt justified in doing so. He reasoned that:
"it is in our province, as engineers, to make the forces of matter obedient to the will of man; and those who use the means we supply must be responsible for their legitimate application". 8
"There is something that appals the imagination in the application of a cool and temperate mind like Lord Armstrong's to the science of destruction." 9
"an inspection of our places of industry which omits a view of the Elswick Works is rather like the play of Hamlet, with the part of the prince left out".10