To my family for their love, support, and inspiration: my wife and soulmate, Vicki, and our wonderful boys, Sam and Thomas; my mum and dad, Sue and John; and my brother, Gary. To my friend and mentor, Penny Hansen, for her wisdom; and to the students for their amazing energy and enthusiasm.
To my loving wife, Kathy, for her ever-present support and encouragement no matter what challenge lies in front of us; to my daughter, Katie, for always bringing sunshine and smiles to my life; to my mom and dad for leading by example; and to my good friend and classmate, Terry, for being the best study partner ever.