I know this world is ruled by infinite intelligence. Everything that surrounds us- everything that exists - proves that there are infinite laws behind it. There can be no denying this fact. It is mathematical in its precision.
Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.
Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.
Discontent is the first necessity of progress.
The doctor of the future will give no medicine but will instruct his patient in the care of the human frame, in diet, and the cause and prevention of disease.
To have a great idea, have a lot of them.
Great ideas originate in the muscles.
There is no substitute for hard work.
The reason a lot of people do not recognize opportunity is because it usually goes around wearing overalls looking like hard work.
Genius is one percent inspiration and ninety-nine percent perspiration.
Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.
I am proud of the fact that I never invented weapons to kill.
If we did all the things we are capable of, we would literally astound ourselves.
To my mind the old masters are not art; their value is in their scarcity.
We don't know a millionth of one percent about anything.
The best thinking has been done in solitude. The worst has been done in turmoil.
Show me a thoroughly satisfied man and I will show you a failure.
The value of an idea lies in the using of it.