If I were to give off-the-cuff advice to anyone trying to institute change, I would say, "How clear is the metaphor?"

The capacity for "uncontaminated wonder," ultimately, is what distinguishes the successful from the ordinary, the happily engaged players of whatever era from the chronically disappointed and malcontent. Therein lies a lesson for geeks, geezers, and the sea of people who fall in between.

This duality, making yourself better while teaching and developing others' judgment capabilities, is the key to leadership that is both productive and principled.

Listening to the inner voice - trusting the inner voice - is one of the most important lessons of leadership.

A passion for continual learning, a refined, discerning ear for the moral and ethical consequences of their actions, and an understanding of the purposes of work and human organisations

Leadership is like beauty - it's hard to define but you know it when you see it.

Expect the best from your people and they will usually deliver but your expectations must be realistic.