I've always found the second book in a series is the hardest to write.

Percentages are why I am rich.

Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.

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

I never pick up an item without thinking of how I might improve it.

Find out what you really love to do, and then find a way to make a good living doing it.

For the bureaucrat, the world is a mere object to be manipulated by him.

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.

Moving from chair to chair, from coffee machine to coffee machine is the limit of my action in most films. But I enjoy being cast in them because I love watching them.

A creative man is motivated by the desire to achieve, not by the desire to beat others.

Don't gamble; take all your savings and buy some good stock and hold it till it goes up, then sell it. If it don't go up, don't buy it.

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.

There is nothing impossible to him who will try.

I'm a slow walker, but I never walk back.

No man can taste the fruits of autumn while he is delighting his scent with the flowers of spring.

Nothing will work unless you do.

Well done is better than well said.

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

It's fine to celebrate success but it is more important to heed the lessons of failure.

We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.

He who will not economize will have to agonize.