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.

Ordinary people who know nothing of phonetics or elocution have difficulties in understanding slow speech composed of perfect sounds, while they have no difficulty in comprehending an imperfect gabble if only the accent and rhythm are natural.

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

Great discoveries and improvements invariably involve the cooperation of many minds. I may be given credit for having blazed the trail, but when I look at the subsequent developments I feel the credit is due to others rather than to myself.

Leave the beaten track behind occasionally and dive into the woods. Every time you do you will be certain to find something you have never seen before.

With every door that closes a new one opens.