The great advantage [the telephone] possesses over every other form of electrical apparatus consists in the fact that it requires no skill to operate the instrument.
Observe, Remember, Compare.
Washington is no place in which to carry out inventions
Great discoveries and improvements invariably involve the cooperation of many minds.
Leave the beaten track behind occasionally and dive into the woods.
Sometimes we stare so long at a door that is closing that we see too late the one that is open.