Whatever the mind of man creates, should be controlled by man's character.
The money one gets for selling one's soul is always spent in deadening one's conscience, so the net gain at the end of a lifetime is no greater than if the diabolic bargain had not been struck.
First be sure a thing is wanted or needed, then go ahead.
Genius is not inspired. Inspiration is perspiration.
I've realized that most of my best ideas have followed a good night's sleep.
IF PARENTS PASS ENTHUSIASM ALONG TO THEIR CHILDREN, THEY WILL LEAVE THEM AN ESTATE OF INCALCULABLE VALUE
I do not believe any type of religion should ever be introduced into the public schools of the United States.
Nothing that's good works by itself, you've got to make the damn thing work.
An idea is something that won't work unless you do.
X-rays ... I am afraid of them. I stopped experimenting with them two years ago, when I came near to losing my eyesight and Dally, my assistant practically lost the use of both of his arms.
The very first thing an executive must have is a fine memory. Of course it does not follow that a man with a fine memory is necessarily a fine executive. But if he has the memory he has the first qualification, and if he has not the memory nothing else matters.
No, I haven't failed thousands of times. On the contrary, I have successfully eliminated thousands of ideas that do not work!
Consider data without prejudice.
The dove is my emblem.
I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.
All bibles are man-made.
Show me a completely contented person and I'll show you a failure.
The doctor of the future will give no medication, but will interest his patients in the care of the human frame, diet and in the cause and prevention of disease. ~
Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.
To those searching for truth -- not the truth of dogma and darkness but the truth brought by reason, search, examination, and inquiry, discipline is required. For faith, as well intentioned as it may be, must be built on facts, not fiction -- faith in fiction is a damnable false hope.
The body is a community made up of its innumerable cells or inhabitants.
I am more of a sponge than an inventor. I absorb ideas from every source. I take half-matured schemes for mechanical development and make them practical. I am a sort of a middleman between the long-haired and impractical inventor and the hard-headed business man who measures all things in terms of dollars and cents. My principal business is giving commercial value to the brilliant but misdirected ideas of others.
Unfortunately, there seems to be far more opportunity out there than ability.... We should remember that good fortune often happens when opportunity meets with preparation.
I've never made a mistake. I've only learned from experience.
Great ideas originate in the muscles.