The telephone will be used to inform people that a telegram has been sent.

Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus.

Don't keep forever on the public road, going only where others have gone. Leave the beaten track occasionally and dive into the woods. You will be certain to find something you have never seen before. Of course it will be a little thing, but do not ignore it. One discovery will lead to another, and before you know it, you will have something worth thinking about to occupy your mind, and really big discoveries are the result of thought.

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

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

Leave the beaten track behind occasionally and dive into the woods.

Don't keep forever on the public road, going only where others have gone and following one after the other like a flock of sheep. Leave the beaten track occasionally and dive into the woods.