"What this power is I cannot say; all I know is that it exists and it becomes available only when a man is in that state of mind in which he knows exactly what he wants and is fully determined not to g…"

"The most important thing for a man to do is to be true to himself."

"The day will come when the man in the street will be able to send his voice to any part of the world, and hear the reply."

"Mr. Watson—Come here—I want to see you."

"The invention of the telephone was the result of long and patient investigation."