Bill gates

The co-founder of Microsoft has been consistently ranked as one of the richest men in the world. Gates, on the other hand, has never succumbed to the temptations of his wealth and has pledged to part with massive amounts of it for charitable causes.
Bill gates quotes:

"It's fine to celebrate successes but it is more important to heed the lessons of failure"
"If i had some set idea of finish line, don't you think i would have crossed it years ago?"
"

http://www.mensxp.com/work-life/corporate-skills/5828-leadership-lessons-from-bill-gates.html

Leadership

What is "Leader" ???

A leader is a person who have  high span of control to inspire or control a group of people and applying the leader's knowledge and skill to lead the members to a better way.

What is leadership?

Leadership is a process by which a person influences others to accomplish an objective and directs the organization in a way that makes it more effective.

"Leadership style"

There are three types of leadership style that i am going to mention, which is autocratic, democratic and Laissez-Faire.

1) Autocratic - A leader who have a lot of power (span of control) over their people. The team member have little opportunity to give suggestion, they only follow the the leader order.

2) Democratic - A leader who make the final decision with team member after the decision process. The team member have the opportunity to give suggestion to the leader.

3) Laiseez-Faire -  A leader who allow their people to make decision by themselves

My Opinion

In my opinion, three of the style have their own advantages and disadvantages, to be a good leader you must know to use different leadership style in different situation.