Duty, on the contrary, is a bugle call to action, whether you are inclined to act, or not.

In this case, I obey the bugle call of duty." "When shall we start ?" inquired the Scarecrow, who was always glad to embark upon a new adventure.

"I don't hear any bugle, but when do we go ?" "As soon as we can get ready," answered the Emperor.

"I'll call my servants at once and order them to make preparations for our journey.".