The correct assumption is that what individuals have learned by age twenty-one will begin to become obsolete five to ten years later and will have to be replaced-or at least refurbished-by new learning, new skills, new knowledge.
Peter DruckerPeople in any organization, including bureaucrats and politicians, are always attached to the obsolete; the obsolescent; the things that should have worked but didn't; the things that once were productive and no longer are.
Peter DruckerI'm better about things than about people. I'm more interested in people, but I'm better at ideas.
Peter DruckerThe most important work of the executive is to identify the changes that have already happened. The important thing . . . is to exploit the changes that have already occurred and to use them as opportunities.
Peter Drucker