Opportunity is missed by most people because it is dressed in overalls and looks like work.

There is nothing more difficult to carry out, nor more doubtful of success, nor more dangerous to handle, that to institute a new order of things

Whosoever desires constant success must change his conduct with the times.

The best way to destroy an enemy is to make him a friend.

It's a terrible thing to look over your shoulder when you are trying to lead - and find no one there

You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.

The secret of success in life is for a man to be ready for his opportunity when it comes.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal.

Whether it's Google or Apple or free software, we've got some fantastic competitors and it keeps us on our toes.

Genius is eternal patience.

If you go to work on your goals, your goals will go to work on you. If you go to work on your plan, your plan will go to work on you. Whatever good things we build end up building us.

At least with me, the match starts much, much earlier than the actual match.

We struggle with the complexities and avoid the simplicities.

It is your decisions, and not your conditions, that determine your destiny.

Don't ever promise more than you can deliver, but always deliver more than you promise.

No man ever achieved worthwhile success who did not, at one time or other, find himself with at least one foot hanging well over the brink of failure.

To invent, you need a good imagination and a pile of junk.

You may have to fight a battle more than once to win it.

Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.

No one ever is defeated until defeat has been accepted as a reality.

Good things happen to those who hustle.