One day there will be a telephone in every major city in the USA

Watson, ... if I can get a mechanism which will make a current of electricity vary in its intensity, as the air varies in density when a sound is passing through it, I can telegraph any sound, even the sound of speech.

I have heard articulate speech produced by sunlight I have heard a ray of the sun laugh and cough and sing! … I have been able to hear a shadow, and I have even perceived by ear the passage of a cloud across the sun's disk.

Great discoveries and improvements invariably involve the cooperation of many minds.

First words on the first telephone - "Mr. Watson - come here - I want to see you."

Man is an animal which, alone among the animals, refuses to be satisfied by the fulfillment of animal desires.

Leave the beaten track behind occasionally and dive into the woods. Every time you do you will be certain to find something you have never seen before.