Our entire biological system, the brain, and the Earth itself, work on the same frequencies.

---

Electric power is everywhere present in unlimited quantities and can drive the world's machinery without the need of coal, oil, gas, or any other of the common fuels.

---

We all make mistakes, and it is better to make them before we begin.

---

Of all the frictional resistances, the one that most retards human movement is ignorance.

---

Woman will ignore precedent and startle civilization with their progress.

---

You may live to see man-made horrors beyond your comprehension.

---

Every effort under compulsion demands a sacrifice of energy. I never paid such a price.

---

In the twenty-first century, the robot will take the place which slave labor occupied in ancient civilization.

---

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.

---