I have been saying for many years that we are using the word 'guru' only because 'charlatan' is too long to fit into a headline.
Peter DruckerCompany cultures are like country cultures. Never try to change one. Try, instead, to work with what you've got.
Peter DruckerEvery 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 Drucker