Deadlines just aren't real to me until I'm staring one in the face.
To be clever enough to get all that money, one must be stupid enough to want it.
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.
Don't ever promise more than you can deliver, but always deliver more than you promise.
Take time to deliberate, but when the time for action comes, stop thinking and go in.
Obstacles are those frightful things you see when you take your eyes off your goals.
If your business is only to sweep a crossing, remember it is your duty to make that crossing the best swept of the world.
I never pick up an item without thinking of how I might improve it.
One must be sane to think clearly, but one can think deeply and be quite insane.
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.
Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
When asked, 'How do you write?' I invariably answer, 'one word at a time.'
God sells us all things at the price of labor.
Tell the audience what you're going to say, say it; then tell them what you've said.
For it is commonly said: accomplished labours are pleasant.
Results! Why, man, I have gotten a lot of results. I know several thousand things that won't work.
He who thinks little errs much
Most people spend more time and energy going around problems than in trying to solve them.
The whole secret of a successful life is to find out what is one's destiny to do, and then do it.
If it's me against 48, I feel sorry for the 48.
The painter has the Universe in his mind and hands.