My final speech to Queensland Mental Health Commission staff and the Mental Health and Drug Advisory Council reflects on nearly 50 years in the public service.

The common thread is not the tussles with complex policy problems, not the fights for equality of opportunity, not even the highs of major system reforms that can come to fruition long after the initiators have moved on.

The common thread is knowing I have made an impact on the lives of individual people.

As I hope it is for all public servants.