To my mind the old masters are not at; their value is in their scarcity.

They say President Wilson has blundered. Perhaps he has, but I notice he usually blunders forward.

The body is a community made up of its innumerable cells or inhabitants.

It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.

His genius he was quite content in one brief sentence to define; Of inspiration one percent, of perspiration, ninety nine.

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

When I have fully decided that a result is worth getting A go ahead of it and make trial after trial until it comes.

One might think that the money value of an invention constitutes its reward to the man who loves his work. But... I continue to find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.

Great ideas originate in the muscles.

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.

Maturity is often more absurd than youth and very frequently is most unjust to youth.

What a man's mind can create, man's character can control.

Be courageous. I have seen many depressions in business. Always America has emerged from these stronger and more prosperous. Be brave as your fathers before you. Have faith! Go forward!

I am proud of the fact that I never invented weapons to kill.

I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.

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.

Non-violence leads to the highest ethics, which is the goal of all evolution. Until we stop harming all other living beings, we are still savages.

There is far more opportunity than there is ability.

I start where the last man left off.

Waste is worse than loss. The time is coming when every person who lays claim to ability will keep the question of waste before him constantly. The scope of thrift is limitless.

There will one day spring from the brain of science a machine or force so fearful in its potentialities, so absolutely terrifying, that even man, the fighter, who will dare torture and death in order to inflict torture and death, will be appalled, and so abandon war forever.

I never did anything by accident, nor did any of my inventions come by accident; they came by work.

Your worth consists in what you are and not in what you have.

The best thinking has been done in solitude. The worst has been done in turmoil.

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

Religion is all bunk.

Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.

To have a great idea, have a lot of them.

The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense. 

I have friends in overalls whose friendship I would not sleep for the favor of the kings of the world.