One day every major city in America will have a telephone.

Neither the Army nor the Navy is of any protection, or very little protection, against aerial raids.

The only difference between success and failure is the ability to take action.

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.

The nation that secures control of the air will ultimately control the world.

Grand telegraphic discovery today … Transmitted vocal sounds for the first time ... With some further modification I hope we may be enabled to distinguish … the “timbre” of the sound. Should this be so, conversation viva voce by telegraph will be a fait accompli.

With every door that closes a new one opens.