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

The inventor is a man who looks around upon the world and is not contented with things as they are. He wants to improve whatever he sees, he wants to benefit the world; he is haunted by an idea. The spirit of invention possesses him, seeking materialization.

Sometimes we stare so long at a door that is closing that we see too late the one that is open.

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

There are two critical points in every aerial flight-its beginning and its end.

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

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.