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“Meetings are by definition a concession to deficient organization For one either meets or one works. One cannot do both at the same time.”
― Peter F. Drucker, The Effective Executive

“Efficiency is doing the thing right. Effectiveness is doing the right thing.”
― Peter F. Drucker

“The focus on contribution by itself supplies the four basic requirements of effective human relations: communications; teamwork; self-development; and development of others.”
― Peter F. Drucker, The Effective Executive

“If the executive lets the flow of events determine what he does, what he works on, and what he takes seriously, he will fritter himself away “operating.â€� He may be an excellent man. But he is certain to waste his knowledge and ability and to throw away what little effectiveness he might have achieved. What the executive needs are criteria which enable him to work on the truly important, that is, on contributions and results, even though the criteria are not found in the flow of events.”
― Peter F. Drucker, The Effective Executive