Along this tree From root to crown Ideas flow up And vetoes down.

— Peter Drucker

A manager is responsible for the application and performance of knowledge.

— Peter Drucker

Business, that's easily defined - it's other people's money.

— Peter Drucker

Checking the results of a decision against its expectations shows executives what their strengths are, where they need to improve, and where they lack knowledge or information.

— Peter Drucker

Company cultures are like country cultures. Never try to change one. Try, instead, to work with what you've got.

— Peter Drucker

Effective leadership is not about making speeches or being liked leadership is defined by results not attributes.

— Peter Drucker

Few companies that installed computers to reduce the employment of clerks have realized their expectations... They now need more, and more expensive clerks even though they call them 'operators' or 'programmers.'

— Peter Drucker

Knowledge has to be improved, challenged, and increased constantly, or it vanishes.

— Peter Drucker

Making good decisions is a crucial skill at every level.

— Peter Drucker

Management by objective works - if you know the objectives. Ninety percent of the time you don't.

— Peter Drucker