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

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

Wherever you may find the inventor, you may give him wealth or you may take from him all that he has; and he will go on inventing. He can no more help inventing that he can help thinking or breathing.

The achievement of one goal should be the starting point of another.

Watson, ... if I can get a mechanism which will make a current of electricity vary in its intensity, as the air varies in density when a sound is passing through it, I can telegraph any sound, even the sound of speech.

Before anything else, preparation is the key to success.