I start where the last man left off.

When I have fully decided that a result is worth getting I go ahead of it and make trial after trial until it comes.

If we did the things we are capable of, we would astound ourselves.

I have far more respect for the person with a single idea who gets there than for the person with a thousand ideas who does nothing....

Genius is one percent inspiration and ninety-nine percent perspiration. As a result, a genius is often a talented person who has simply done all of his homework.

Discontent is the first necessity of progress.