Success is going from failure to failure without loss of enthusiasm.

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

You don't have to be great to start, but you have to start to be great

Leadership and learning are indispensable to each other.

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.

Every action has its pleasures and its price.

There are many ways of going forward, but only one way of standing still.

He who will not economize will have to agonize.

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.

Just because something doesn't do what you planned it to do doesn't mean it's useless.

Practice does not make perfect. Perfect practice makes perfect.

Pleasure in the job puts perfection in the work.

You never achieve success unless you like what you are doing.

One must be sane to think clearly, but one can think deeply and be quite insane.

A person who never made a mistake never tried anything new.

Your most unhappy customers are your greatest source of learning.

Take time to deliberate, but when the time for action comes, stop thinking and go in.

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

Four things for success: work and pray, think and believe.

I hope that I may always desire more than I can accomplish.

To be clever enough to get all that money, one must be stupid enough to want it.