I have heard articulate speech produced by sunlight I have heard a ray of the sun laugh and cough and sing! … I have been able to hear a shadow, and I have even perceived by ear the passage of a cloud across the sun's disk.

When one door closes, another one opens.

America is a country of inventors, and the greatest of inventors are the newspaper men.

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.

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

A man, as a general rule, owes very little to what he is born with - a man is what he makes of himself.

The day will come when the man at the telephone will be able to see the distant person to whom he is speaking.