Interest is the invention of Satan.

His genius he was quite content in one brief sentence to define; Of inspiration one percent, of perspiration, ninety nine.

Failure is the most effective technique to optimize strategic planning, implementation and processes.

Our greatest weakness lies in giving up.

Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.

In 'Common Sense' Paine flared forth with a document so powerful that the Revolution became inevitable. Washington recognized the difference, and in his calm way said that matters never could be the same again.

The three things that are most essential to achievement are common sense, hard work and stick-to-it-iv-ness.