"Don't keep forever on the public road, going only where others have gone. Leave the beaten track occasionally and dive into the woods. Every time you do so you will be certain to find something that y…"

"I did not invent the telephone, the telephone invented me."

"The most important thing is to keep on trying, to never give up."

"The telephone may be used for the transmission of speech, music, and other sounds, but its principal use will be for communication between individuals."

"I am a man of science, and I believe in the power of observation and experimentation."