The person who will make the greatest contribution to a company is the mature person-and you cannot have maturity if you have no life or interest outside the job.
Peter DruckerThe leader of the past was a person who knew how to tell. The leader of the future will be a person who knows how to ask.
Peter DruckerIt takes far less energy to move from first-rate performance to excellence than it does to move from incompetence to mediocrity.
Peter Drucker