Be alone, that is the secret of invention; be alone, that is when ideas are born.
I don't care that they stole my idea. I care that they don't have any of their own.
Today's scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality.
The earth is bountiful, and where her bounty fails, nitrogen drawn from the air will refertilize her womb. I developed a process for this purpose in 1900. It was perfected fourteen years later under the stress of war by German chemists.
If we want to reduce poverty and misery, if we want to give to every deserving individual what is needed for a safe existence of an intelligent being, we want to provide more machinery, more power. Power is our mainstay, the primary source of our many-sided energies.
Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more.
Modern science says: 'The sun is the past, the earth is the present, the moon is the future.' From an incandescent mass we have originated, and into a frozen mass we shall turn. Merciless is the law of nature, and rapidly and irresistibly we are drawn to our doom.
Of the various branches of electrical investigation, perhaps the most interesting and immediately the most promising is that dealing with alternating currents.
The feeling is constantly growing on me that I had been the first to hear the greeting of one planet to another.
In the twenty-first century, the robot will take the place which slave labor occupied in ancient civilization.
The spread of civilisation may be likened to a fire; first, a feeble spark, next a flickering flame, then a mighty blaze, ever increasing in speed and power.
I do not think you can name many great inventions that have been made by married men.
The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane.