I myself eschew all stimulants. I also practically abstain from meat.
I could only achieve success in my life through self-discipline, and I applied it until my wish and my will became one.
It will soon be possible to transmit wireless messages around the world so simply that any individual can carry and operate his own apparatus.
Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more.
A new idea must not be judged by its immediate results.
If you only knew the magnificence of the 3, 6 and 9, then you would have the key to the universe.
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.
The harness of waterfalls is the most economical method known for drawing energy from the sun.
Every effort under compulsion demands a sacrifice of energy. I never paid such a price.
The idea came like a flash of lightning and in an instant the truth was revealed.
Of all the frictional resistances, the one that most retards human movement is ignorance.
The newspapers of the twenty-first century will give a mere ‘stick’ in the back pages to accounts of crime or political controversies, but will headline on the front pages the proclamation of a new scientific hypothesis.
To know each other we must reach beyond the sphere of our sense perceptions.