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

There cannot be mental atrophy in any person who continues to observe, to remember what he observes, and to seek answers for his unceasing hows and whys about things.

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.

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

First words on the first telephone - "Mr. Watson - come here - I want to see you."

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

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