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

No tears in the writer, no tears in the reader. No surprise in the writer, no surprise in the reader.

To those whom much is given, much is expected.

I readily absorb ideas from every source, frequently starting where the last person left off

It is no use saying 'we are doing our best.' You have got to succeed in doing what is necessary.

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

Rich people have small TVs and big libraries, and poor people have small libraries and big TVs.

Speak softly and carry a big stick; you will go far.

Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.

Leadership and learning are indispensable to each other.

Old Professors never die, they just lose their faculties.

He who thinks little errs much

I will prepare and some day my chance will come.

The best of artists has no conception that the marble alone does not contain within itself.

Because ideas have to be original only with regard to their adaptation to the problem at hand, I am always extremely interested in how others have used them...

Work and worship are necessary to take away the veil, to lift off the bondage and illusion.

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

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

To solve any problem, here are three questions to ask yourself: First, what could I do? Second, what could I read? And third, who could I ask?

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

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