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

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

Opportunity is missed by most people because it is dressed in overalls and looks like work.

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.

If your business is only to sweep a crossing, remember it is your duty to make that crossing the best swept of the world.

If A is success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.

I will prepare and some day my chance will come.

Good things happen to those who hustle.

The destination of the seeker… depends on the road he takes.

Our greatest glory is not in never failing, but in rising up every time we fail.

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

The term 'serious actor' is kind of an oxymoron, isn't it? [Like] 'Republican party' [or] 'airplane food'.

A great secret of success is to go through life as a man who never gets used up.

When inspiration does not come to me, I go halfway to meet it.

A good objective of leadership is to help those who are doing poorly to do well and to help those who are doing well to do even better.

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

It is amazing how much can be accomplished if no one cares who gets the credit.

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

For a man to conquer himself is the first and noblest of all victories.

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