The whole secret of a successful life is to find out what is one's destiny to do, and then do it.
To invent, you need a good imagination and a pile of junk.
The man who is swimming against the stream knows the strength of it.
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
I do not like to repeat successes, I like to go on to other things.
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.
You don't have to be great to start, but you have to start to be great
Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.
If you are not willing to risk the unusual, you will have to settle for the ordinary.
Take time to deliberate, but when the time for action comes, stop thinking and go in.
Our greatest glory is not in never failing, but in rising up every time we fail.
Workers of the world unite; you have nothing to lose but your chains.
I do know that when I am 60, I should be attempting to achieve different personal goals than those which had priority at age 20.
Don't ever promise more than you can deliver, but always deliver more than you promise.
Boredom is one of the most blissful feelings.
The painter has the Universe in his mind and hands.
Whenever you are asked if you can do a job, tell 'em, 'Certainly I can!' Then get busy and find out how to do it.
What one has to do usually can be done.
Ability may get you to the top, but it takes character to keep you there.
The successful leader must plan his work and work his plan.
If you think your teacher is tough, wait until you get a boss. He doesn't have tenure.