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

Washington is no place in which to carry out inventions

It is the man who carefully advances step by step...who is bound to succeed in the greatest degree.

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

We are all too much inclined, I think, to walk through life with our eyes shut. There are things all round us and right at our very feet that we have never seen, because we have never really looked.

God has strewn our paths with wonders and we certainly should not go through life with our eyes shut

I have had the feeling that a properly constructed flying-machine should be capable of being flown as a kite; and conversely, that a properly constructed kite should be capable of use as a flying-machine when driven by its own propellers.