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.
Alexander Graham BellNeither the Army nor the Navy is of any protection, or very little protection, against aerial raids.
Alexander Graham BellLeave 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.
Alexander Graham BellThe most successful men in the end are those whose success is the result of steady accretion. It is the man who carefully advances step by step, with his mind becoming wider and wider - and progressively better able to grasp any theme or situation - persevering in what he knows to be practical, and concentrating his thought upon it, who is bound to succeed in the greatest degree.
Alexander Graham Bell