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

Results! Why, man, I have gotten a lot of results. I know several thousand things that won't work.

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

Make the lie big, make it simple, keep saying it, and eventually they will believe it

Success is steady progress toward one's personal goals

The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence.

The successful leader must plan his work and work his plan.

He who thinks little errs much

Of all the things I've done, the most vital is coordinating those who work with me and aiming their efforts at a certain goal

You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself. That is something you have charge of.

Innovation distinguishes between a leader and a follower.

Success is most often achieved by those who don't know that failure is inevitable.

Without a sense of urgency, desire loses its value.

Do one thing at a time, and while doing it put your whole soul into it to the exclusion of all else.

I am easily satisfied with the very best.

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.

I've always thought anyone can make money. Making a life worth living, that's the real test.

Dad, you've done a lot of great things, but you're a very old man, and old people are useless.

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

Only put off until tomorrow what you are willing to die having left undone

You don't get paid for the hour. You get paid for the value you bring to the hour.