"Although he reputedly hated the label of ‘guru’, Peter Drucker was, by any standards, the greatest management guru the world has yet seen. In 1996, the McKinsey Quarterly journal described him as the ‘the one guru to whom other gurus kowtow’ and Robert Heller described him as ‘the greatest man in the history of management’, praise indeed for a man who described himself as ‘just an old journalist’."

“Managers are to information as alcoholics are to booze. They consume enormous amounts, constantly crave more, but have great difficulty in digesting their existing intake.”

“Effective management always means asking the right question.”

“What goes wrong is that sensible anticipation gets converted into foolish numbers: and their validity always hinges on large loose assumptions.”

“Robert Heller obituary guardian.co.uk, Sept 18, 2012”

“Decisions should be pushed down as far as possible, to the level of competence. This allows senior managers more time for making decisions of a more complex nature”

“Never ignore a gut feeling, but never believe that's enough.”