Abu-Setta's self-imposed mission has encompassed not only documenting al-Nakba, but also ensuring that "the memories and identity of the occupied homeland are never lost".

His self-imposed mission to "contribute to modernism" in the pursuit of art has had wide practical significance to the development of Chinese contemporary art.

He seems merely shallow and cold, rather than a man crazily obsessed with his self-imposed mission.

Had he met the violent resistance of a robot cadre while carrying out our self-imposed mission, he probably would not have thought twice about it.

In recent years the paper has cemented its self-imposed mission as an independent voice railing against corporate media and conservative political control.

He didn't need to be told how clever - and dangerous - a maniac with a self-imposed mission could be.

In any case this one was a self-imposed mission.

My self-imposed mission was to search this island of some thirty thousand people and find two men known to me only as PJ and Walt.

Mr. Blakey himself talks about his self-imposed mission to perpetuate jazz for the next generation.

For one thing, he had a self-imposed mission to write war stories different from those of reporters and retired generals.