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

Management by objectives works if you first think through your objectives. Ninety percent of the time you haven't.

Until we can manage time, we can manage nothing else.

So much of what we call management consists in making it difficult for people to work

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

Management is doing things right; leadership is doing the right things.