Presidents, leaders, to be effective have to represent the whole to the parts and to the world outside. They may live in the centre but they must not be the centre. To reinforce the common sense they must be a constant teacher, ever travelling, ever talking, ever listening, the chief missionary of the common cause.
Charles HandyTo learn anything other than the stuff you find in books, you need to be able to experiment, to make mistakes, to accept feedback, and to try again. It doesn't matter whether you are learning to ride a bike or starting a new career, the cycle of experiment, feedback, and new experiment is always there.
Charles Handy