If I had eight hours to chop down a tree, I'd spend six hours sharpening my axe.

Vision without execution is just hallucination.

Let others lead small lives, but not you. Let others argue over small things, but not you. Let others cry over small hurts, but not you. Let others leave their future in someone else's hands, but not you.

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

Success is having a flair for the thing that you are doing, knowing that is not enough, that you have got to have hard work and a sense of purpose.

There is but one dependable method of accumulating and legally holding riches, and that is by rendering useful service.

A holding company is the people you give your money to while you're being searched.

To those whom much is given, much is expected.

The whole secret of a successful life is to find out what is one's destiny to do, and then do it.

The finest task for an Engineer – to survey, to plan, to suggest resources and material, assemble them for task in hand, implement and produce results.

It is better to serve like steel than rust and wither away like iron.

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.

Without a humble but reasonable confidence in your own powers you cannot be successful or happy.

Work does not kill a man, it is worry, irregularity and uncertainty that kill.

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

People refuse to take chances in business, because they fear the criticism which may follow if they fail.

Obstacles are those frightful things you see when you take your eyes off your goals.

I never did a day's work in my life. It was all fun.

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

Kill my boss? Do I dare live out the American dream?

We don't know a millionth of one percent about anything.