Every three or four years I pick a new subject. It may be Japanese art; it may be economics. Three years of study are by no means enough to master a subject but they are enough to understand it. SO for more than 60 years I have kept studying one subject at a time.
Peter DruckerWe can say with certainty - or 90% probability - that the new industries that are about to be born will have nothing to do with information.
Peter DruckerInnovation requires us to systematically identify changes that have already occurred in a business - in demographics, in values, in technology or science - and then to look at them as opportunities. It also requires something that is most difficult for existing companies to do: to abandon rather than defend yesterday.
Peter Drucker