See also:
Managers have a short-term perspective, leaders have a longer-term perspective
Managers have an eye on the bottom line, leaders have an eye on the horizon
Managers administer, leaders innovate
Managers imitate, leaders originate
Managers emulate the classic good soldier, leaders are their own person
Managers ask how and when, leaders ask what and why
Managers do things right, leaders do the right things
Managers accept the status-quo, leaders challenge the status-quo [anon., @ Passionate leadership- Excitement begets Excitement Source]